Monthly Archives: March 2020

  • Bored And Confined To Barracks? Week 2, Part 1

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    It's not that Jenny and I are never satisfied, but we have lived in five different houses since we tied the knot over 45 years ago. The first was a rented seafront flat, the other four have been bought as 'projects', in other words needed stripping out then restoring from the attic to the ground floor! Whilst we have 'succumbed' to UPVC windows in our present house (twas bought with them already fitted) all the others have had wooden frames primed, under coated and top coated with Epifanes yacht enamel. Despite living near to the North East coast, our woodwork has always outperformed our neighbours', coated no doubt with household paint! The image above is of our front door which was, some thirteen years ago, stripped to bare wood, coated with Epifanes wood primer followed by their undercoat and finished with two applications of Epifanes yacht enamel and hasn't been coated since. It's North facing, and if it's a strong Northerly wind (like today) we get salt deposits and sand clinging on the door. Yesterday, bored with going through cupboards and sorting out redundant clothing and accumulated sailing related junk, I decided that the door was looking a little scruffy, time for a repaint methinks. However, a quick wash down with fresh water and a little elbow grease whilst using Vistal Hard Surface Natural Cleaner brought it back to a respectable look! The other bonus (apart from not having to repaint) of course is that I can then 'borrow' the Vistal for use on the boat!

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    As for the interior of the house, we do like the look of wood, and Epifanes gloss varnishfollowed by their rubbed effect varnish* has been used on various floors and other areas throughout the house. 13 years on, the floorboards in the back lounge are still looking good but lift the rug and one can see the effects of the sun on a south facing room. If this lockdown carries on, to be added to my to do list might be....... strip the varnish off, sand the faded area to restore the original colour and then get the varnish out! Fortunately the kitchen ceiling alcove doesn't get the sun so that's a blessing!

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    The hall, when we arrived all those years ago, was 'decorated' if that's the correct word in a dirty cream paint. We lived with it for some three years whilst we worked on other areas of the house but then one evening, having used some paint stripper on an a piece of furniture, I decided that I would try some on one of the panels in the hall. Cream came off easily, green followed that and then what looked like a treacly substance and behind that oak panels! 45 gallons of Nitromors, 160 man hours of Jen and my labour, lost count of how many Scarsten scraper blades this was followed by 10 weeks work by two French polishers, three of their weeks work was removing the tiny specs of paint from the corners of each panel. After a year the hall staircase, upper landing and seven outward facing doors were restored to their original glory. No we didn't use Epifanes on this project as it would not have looked right had to be French polished. Yes Jenny does think I have OCD!

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    As for our plastic fantastic, the Mystery 35, whilst it does have a glass fibre hull and the deck/cabin moulding is constructed using the same material, we have tried to create a traditional looking interior by the use of wood wherever possible, including vacuum bagging of mahogany veneered ply onto the grp upper surfaces in the cabin sides then varnishing with Epifanes gloss followed by a final coat of rubbed effect varnish! Bulkheads were painted cream to keep up with the traditional look.  As the wood used in the construction was stable and not prone to any movement  we went for Epifanes two pack paint and varnish, unbelievably hard wearing! Incidentally when ever space permitted we rolled as against brushed using a concave roller (gets into corners and doesn't leave a line when joining up)

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    If you have brought your floorboards, tiller, washboards etc home and still haven't got round to working on them or you are still able to work on your boat, read what the experts at Marineware have to say about obtaining a superb finish by clicking on here. Remember we might be closed as a bricks and mortar chandlery but you can order online for carrier delivery.

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    *Epifanes Rubbed effect varnish is not UV stable so we always recommend that your first few coats are clear gloss before your application of rubbed effect.

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  • Bored And Confined To Barracks?

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    Our bricks and mortar chandlery is regrettably closed for business till we hear otherwise, however we still can send out mail orders but regret for ‘locals’ you are unable to click and collect! If your marina or boatyard is not allowing you access to your boat due to the current restrictions, why not take the opportunity to brush up on either the racing rules or the collision regulations? Once I have worked partly through Jen’s ‘to do’ list that's what I intend to do! We have a great selection of books on the subjects and boss man Andy advises me he will work 24/7 to ship them out! We also have some excellent ‘plastic fantastic’ Weems & Plath recognition tool and study aids (their words not mine) for the identification of vessels by Lights & Shapes and another on the Rules of the Road.

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    If you are already red hot on the rules, to ease the ‘confined to barracks’ mood, worth buying if you haven’t already got one is the Speedy Stitcher. One of those items that can find a use at home and on the boat so if your good lady needs her horse blanket repaired, the dog or cats fabric basket needs a stitch, maybe your motor bike cover seam too or the sails in the garage or loft need a little TLC this may be the tool for you? Buy one, advise the material you are trying to repair/colour and I will slip a small piece in, assuming we have it in stock!

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    To get your brownie points up why not invest in a container of Wet & Forget? Its brilliant stuff and you don’t need to put any effort into getting an excellent result. It will treat and remove mould lichen & algae from block paving on the front or side drive, excellent on decking or that green wooden fence, spray it on an area of the brickwork that doesn’t get the sun in winter and is in need of a clean up, just spray either the diluted solution on, you need to use a garden spray or purchase the new premixed Wet & Forget Rapid, just connect to a hose and go! A container of the Rapid will treat up to 200 sq mtrs depending on the porosity and you can reach an area that is otherwise accessible. Both the original Wet & Forget and Wet & Forget Rapid can safely be used on any canvas work you may have brought home. Its excellent and perfectly safe to spray on furling headsails to prevent the green mould appearing during a damp summer or autumn. If your canvas work or sails already have a ‘touch of green,’ please note that the results are not immediate and any green staining will not disappear until the item is subject to rain and wind but there is not a ‘time limit’ as to when the item is sprayed then exposed! It can of course be used safely on GRP decks/cabins etc, teak or varnish work and of course you can raid the house keeping money to pay for it!

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    If you have brought some varnish work home, look out for our next blog, it did occur to me last night whilst I was ’slapping’ a coat on these two kickboards that some of us might need a refresher (bit like my knowledge of the rules of the road!)

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  • 305. All You Need To Ask About Deck Fittings

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    As I write this we are all forbidden to visit pubs, restaurants etc and we find out that our sailing club and the marina coffee bar have closed their doors for the foreseeable future and the talk on the car radio as I drove home from work was that by tonight we may well be in full lockdown. In anticipation of this my wife Jenny made a list last Saturday and insisted on me starting it Sunday! You never know it may well be finished before the lockdown is lifted. Having said that the fairies seem to have added to the list whilst I was sound asleep last night! However on a more positive note methinks that it’s only fair that we can ‘self isolate’ on our boat and pay attention to all that’s written down in the Weems & Plath Maintenance Log Book. Certainly Andy's past Saturday trade was good, mainly antifoulingsales it must be said, if push comes to shove let's hope that if a lock down does occur we will be allowed to drive to the boatyard compound!

    GUARD RAILS AND STANCHIONS

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    Even though they are ‘staring us in the face’ throughout the season, stanchions and guard rail wires are often items that are overlooked during pre-season checks. Stanchions should be checked for security; make sure the base is fastened securely to the deck and/or toe rail, there is no movement and ALL fastenings are in place. An unstable base is not only dangerous (it could possibly lead to a man overboard situation) but the mechanical fastenings could be the source of a leak into the interior. If the stanchion is secure but there is evidence of water leaking into the interior of the boat, as a stop gap you could apply sealant round the base however the correct fix is to remove the stanchion and re-fix as per our suggestions below. If the base is found to be loose, remove, clean and re-fit using the appropriate sealant. My recommendation is to go for a polysulphide such as Arbokol 1000 or Geocel 201 as against a silicone sealant. Before refastening a stanchion or any other deck fitting, make sure you remove any old sealant, degrease the fitting and deck using acetone or similar and, if the hole for the thru bolt is not countersunk to accept the sealant do so. Finally, mask both the deck and the base so any excess sealant that is squeezed out as you tighten down can easily be cleaned up. However when bolting down make sure that you don’t squeeze ALL the sealant out, tighten, allow the sealant to set then go for a final turn on the spanner.

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    Should there be an issue with the integrity of the deck click here for further guidance.

    Check stainless tubular type stanchions where they are drilled (for mid height guard wire to pass through) for signs of stress cracks around the hole. Make sure the stanchion is well secured into its base either by lock nut and bolt or by split pin, however if an alloy stanchion is being secured with a stainless fastening you must use a barrier such as Duralac or TefGel to prevent an electrolytic reaction, same if you are using stainless stanchions in aluminium bases isolate between the two dissimilar metals. Split pins can be very sharp, likewise the end of a stainless bolt. They should be covered in self amalgamating tape or have a blob of clear sealant applied to prevent snagging on footwear, foulies and of course skin!

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    Guard rail wires should be carefully examined for broken strands, especially where the wire exits the swage or Talurit termination and where they pass through stanchions. You will have to slacken each wire and draw it through the stanchion to fully inspect. Flex the wire gently at the start of a termination or where the wire has passed through a stanchion, if any broken or worn strands are found they MUST be replaced. It’s certainly not recommended and highly dangerous to just tape over them! PVC covered stainless steel guard rail wires (banned some years ago for use on offshore race boats) can hide broken or corroded strands, especially where the PVC cover butts up against swage or Talurit terminations. Moisture and a lack of oxygen provide the ideal scenario for crevice corrosion to go unnoticed. Any signs of rust in these areas can be a pointer to wire failure through weakening of the internal wire strands – if rust stains are in evidence, replace without question, preferably with uncovered stainless wire. However if you do like the comfort factor of a PVC cover, we do sell 'split tube' for this purpose and of course it's other advantage is that it can be 'popped off'' to inspect  the wire below!

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    Ensure pelican hooks in gate assemblies are free to operate, preferably single handed, and that the piston fully engages when closed. Lubricate same with a dry film sprayBoeshield T9 or similar. Incidentally, Wichard have just brought out an automatic locking pelican hook that has been designed for single handed use and the piston engages in a different manner to traditional types. If your method of tensioning the guard rails is a cord lashing (strongly recommended as should you need to 'drop the wire' it's an awful lot quicker cutting the cord) by the pushpit, we would suggest that this is replaced on a regular basis ie once every two years. Check that all the clevis pinsrings or split pins in the assembly are secure and either tape over using self amalgamating tape to avoid snagging, or cover with those rather nice leather boots as blogged about on TTT.193. Speaking of rings I personally don't like them have seen to many instances where the ring has opened up jeopardising in a worst case scenarios the rig or a man overboard!

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    If small people or dogs etc are going to be found on board this season and netting is already fitted, examine for signs of degrading through UV exposure and check it is secured to both guard rail wires and toe rail. There’s no point in fitting it if your precious cargo can roll under the lower edge! Remember that saying 'there is no such thing as a free lunch'. Cheaper netting is welded whilst the stronger and, of course, more expensive netting is of a knotted construction.

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    Once you have finished your inspection of guardrails and stanchions, check the security of your bolt on accessories such as the liferaft cradlehorseshoe bracket and while you are in that area, are any electrical cables passing through the pushpit showing signs of chafe?

    JACKSTAYS

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    Whether wire or webbing they should be inspected. Check wire termination, especially PVC covered as per guard rail wires, for corrosion. Webbing jackstays should have their stitching checked for integrity, if any nicks or cuts are found in the webbing or if more than 3-4 years old they should be replaced owing to UV degradation of the material. If replacing wire jackstays, consider changing to webbing as an alternative, it is kinder to decks and doesn’t roll under foot.

    DECK FITTINGS

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    Mooring cleats, Fairleads, bollardseye bolts or u-bolts, like stanchions, should be checked thoroughly for movement. Should you suspect a deck fitting as a source of a leak, as we said before the application of a bead of mastic round the edge is only a short term solution! Any shackles securing a block or similar should all be checked for wear and moused with either monel seizing wire or cable ties for added security. However, if using ties and they have been snipped, watch out for razor sharp edges, use a blob of silicone sealant to cover. Water in the fuel last season? Was it a 'dodgy' refill or is the fuel filler cap nitrile seal past its sell by date, spare seals are available for the Easy filler caps and some other makes, however if sourcing a seal don't forget diesel rots neoprene in double quick time.

    BLOCKS, TRACK AND CARS

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    Blocks, especially ball or roller types, assuming in good condition running freely and not missing any ball bearings, they, should be given a good rinse with fresh water from a hose to remove all traces of grit. Lubricate ball bearing blocks using Harken’s OneDrop Ball Bearing Conditioner or if plain bearing McLube. Don’t use grease as it will attract and hold grit which makes a very effective cutting compound causing wear. DO NOT oil or grease any Tufnol based block or fitting as it causes the material to swell and will seize sheaves onto pins. Any sheaves that are found to have wear between axle and the sheave (either sideways or vertical play) or nicks in the edges of sheaves which will cause damage to sheets or halyards should be replaced. Check all cam jammers on mainsheet block systems if the teeth are worn or the springs have lost their power replace. Rinse all mainsheet and headsail cars especially those using ball systems with a hose, inspect for wear and lubricate as per blocks. If fitted with plunger stops ensure these are free, lubricate with light oil and make sure they locate correctly in the track system. Check all track fastenings for integrity and make sure all track end stops are securely fastened, any rubber pads within the stops should be replaced if worn.

    WINCHES (HALYARDS & SHEETS)

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    Winches should be stripped and cleaned of all grease, if the grease is hardened it may be necessary to use paraffin and a de-greasing agent. Inspect for wear especially pawls (rounding of the edges and cracking), check for play in all bearings and especially those bearings between drum and the gearbox. If the drum can be rocked excessively the caged roller (or plain) bearing is most likely worn. Re-assemble using winch grease, don’t use the white stern tube grease as it isn’t suitable for the purpose, and don’t smother parts heavily, a light coating will suffice. Keep grease away from pawls as it will make them stick, only apply a light pawl oil. Replace all pawl springs as a matter of course, a pawl that doesn’t engage through a broken or worn spring subjects the other pawls to overloading which can lead to damage. On self tailing winches check the rope gripper on the top of the winch for signs of wear, if worn replace. A manufacturer’s service kit is recommended as it usually contains most parts that are required for a full service together with an exploded diagram and instructions for stripping and rebuilding the winch. Ex-Geordie Mark Gardiner who works for Harken (started his marine career as our 'Saturday lad' but now often jetting off round the world to service Volvo RTW winches and the like) some years ago kindly wrote an excellent article on winch servicing, click here to access. Rope clutches, often neglected, should be washed thoroughly and checked for holding power, service kits are certainly available for Spinlock, Easy Marine and Barton, other makes no doubt also please check with our staff.

    HEADSAIL FURLING/REEFING SYSTEMS

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    A good hosing out of both the upper swivel and the lower drum unit will remove grit and salt deposits. Check both items revolve freely on their bearings, if not rinse again. DO NOT attempt to strip swivels or drum units especially older Furlex units as you will almost certainly lose some of the bearings and possibly damage the retaining circlips during stripping, you may also find it impossible to re assemble the unit without the use of a special press, seek advice regarding this. Only grease systems according to the manufacturers recommendations, some systems use grease, others recommend a dry type lubricant such as McLube or OneDrop Ball Bearing Conditioner. Check the integrity of the furling line, especially the knot that secures it to the drum and most importantly are the stanchion leads, if of the sheave type, running freely and check for flats on the sheave. If you haven't introduced some 'friction' when unfurling the genoa to prevent a riding turn on the drum why not consider a Harken ratchet block complete with becket (elastic tied to becket/guardrail to avoid it damage deck or itself)

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    WINDLASS

    Last but not least don’t forget the windlass, out of sight out of mind you certainly don’t want it to fail if you have to up anchor in a hurry! Despite having a great bunch of guys with a shed-load of expert knowledge, windlass servicing is not our forte so I make no apologies for reproducing the following maintenance schedule courtesy of Lofrans.

    A. Clean all external surfaces and hidden points with fresh water and remove all salt layers.

    B. Grease the rotating parts, particularly, the main shaft threads and clutch cones. Check for evidence of corrosion and mechanical stresses. A coat of Boeshield T9 is recommended.

    C. Remove and clean the terminals of the electric motor, then when everything is back in place, spray with Boeshield T9. Test the voltage drop at the terminals.

    D. Replace all gaskets.

    E. Once the anchor windlass has been removed from the deck clean all salt deposits and the like from under the base and re. seal with polysulphide again.

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  • 304. All You Need To Ask About Topsides And Brightwork

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    Too often one sees a relatively new powerboat or yacht that is no doubt immaculate 'down below' but it's topsides, cabin and deck are sadly lacking some TLC. Tis especially true of boats built from GRP with a gelcoat finish with a colour such as dark blue, green or red. If you have the time and inclination to keep up to date with your washing and polishing, not only will it look like a well kept craft but, if and when you come to sell her, you will more than get back any money spent on keeping it ship shape and Bristol fashion but if a potential buyer is looking at two 'identical' potential buys the smart one methinks would get the nod! If, like me, your boat resides in sunny climes, it's even more important to keep on top of the exterior maintenance as the effects of UV can soon dull a gelcoat especial those of a bright colour.

    Wash: Its a well known fact that all GRP gelcoat surfaces will benefit from at least one application per year (or preferably 2 if you are out in say the Med) of a good quality wax which not only seals the surface from ingress of dirt but also protects against UV degradation. However before you get onto the 'hard work' to get the best result and protect your investment, we recommend that you first wash the surface down to remove any surface contaminants. If, after carrying out that task, you then discover you have some minor gelcoat damage that requires attention, now is the time to tackle this.

    Gelcoat Repairs:

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    For those annoying unsightly hairline cracks (often found round stanchion bases) MagicEzy Hairline fix is the business! It's great for stress cracks, crazing and scratches. For best results scrape out any dirt / wax / grime with a sharp needle / pin. Flush the surface to be repaired with Acetone, in our experience, simply washing the area is not as effective. Use MagicEzy 9 Second Chip Fix for ‘sorting’ nicks, chips and gouges. This excellent product is available in 11 colours (inc five shades of white). For larger dings that you may want to tackle, we suggest you clean the immediate area with 1200 wet/dry paper, this will remove any oxidised gelcoat still remaining, without doing this your repair will end up having a miscoloured ring round it. Getting the correct coloured gelcoat can be a pain, however we always recommend in the first instance you contact the original boatbuilder or importer of the boat whilst armed with the hull build number to see if they can supply. Once you have ascertained the correct match and prepared the surface to accept ‘catalysed’ gelcoat, apply with a soft brush leaving the material slightly proud. Carefully apply a piece of clear Sellotape or cling film over the gelcoat, this will prevent the gelcoat drying tacky. When set remove the tape and carefully sand to shape using a sanding block with 400 then 600 and finally 1200 wet/dry paper and plenty of water, do this carefully so as not to damage or rub through the surrounding gelcoat. The repair can then be polished to a mirror finish using Farecla or a similar compound.

    Polishing:

    After the wash down using something like Internationals Super Cleaner and with no dings, crazing or whatever to attend to we recommend that you use a mild cleaner such as Meguiar's Colour Restorer-Mild Cleaner which will safely remove light oxidation and most stains from the gelcoat either by hand or machine. By using a machine to do the hard work the task will be completed quicker than buffing by hand using a 100% cotton polishing cloth. If using a machine we recommend a variable speed machine like the Shurhold Dual Action polisher with either a microfibre or foam polishing bonnet, keep the speed slow and don’t stay in one area as it is all too easy to overheat and damage gelcoat. Don’t be tempted to use an electric drill with a polishing bonnet, they are usually too high a speed and can result in burn damage to the gelcoat. An oxidation remover such as  Meguiar's Oxidation Remover will bring life back into most faded topsides, however, if the topsides are very chalky and dull (dark green & blue gelcoat are particularly susceptible) you can start with a coarse paper 200-300 working up to 800 or 1000 grade, or after using the more aggressive grades spread compound evenly onto the hull in areas of about a square metre so it doesn’t dry. Work with the polisher in lines. While working, don’t place your polishing mop on the ground or on the plank you are working on; one speck of grit on its surface can have disastrous results on your topsides! When applying cleaner or oxidation remover always work on a cool surface in the shade.

    Brighten and Restore Your Topsides

    Don’t try to polish or wet/dry rust or black berry bird droppings marks from your decks or hull, the stains can be deep into the gelcoat. Instead try using a stain remover based around oxalic acid such as Y10 or Davis FSR either should bleach out the stain. After thoroughly cleaning with either the mild cleaner or the oxidation remover the surface must then be sealed using a good quality uv resistant wax, for best results apply at least 2 coats with a day between each coat to allow the wax to harden, applying the second coat too soon will only remove the first! For GRP cabin sides and other smooth gelcoat surfaces the technique is the same, however for cleaning and removing oxidation on moulded in nonslip I always use Vistal Hard Surface Cleaner. Vistal can also be used to help bring a sparkle back to dull painted or varnished surfaces; its also great for brightening your stainless pull/pushpit, alloy stanchions and other metal surfaces.

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    Above:  An application of Y10 on rust stain followed by Vistal on non-slip surface.

    Teak Decks:

    Teak decks can suffer badly in our damp climate growing algae and moss during the winter months and I have no doubt that boats in other locations suffer similarly. Whatever you do don’t be tempted to clean them with a pressure washer, they will certainly be clean but the pressure of the water jet will tear out the soft grain leaving them like a ploughed field. It is best to clean them with one of the proprietary teak cleaners my choice being Teak Wonder cleaner, however we all tend to have our favourites, anyway following their instructions, use Starbrite Magic Scrub and, for the awkward corners, their stainless bristled Detailing Brush or a Shurhold Scrubbing Pad and ONLY scrub across the grain. After cleaning, the decks should be given a wash with Teak Wonder brightener, this will restore their colour. When dry, spray with ‘Wet and Forget’ which will stop any moss or algae growth.

    Last But Not Least:

    Should you have halyards, webbing lifelines and other items that are resting on the deck and have ‘turned’ green over the winter months don’t despair. Don’t get the pressure washer out (destroys stitching/fabrics etc) but spray Wet and Forget on these items and leave, the diluted solution will do all the hard work and prevent re-growth. If any covers, dodgers or spray hoods are also looking ‘green’ they will also benefit from a spray.

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  • 303. All You Need To Ask About Antifouling But Were Reluctant To Ask

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    Cleaning:

    Make sure your hull is clean and ALL traces of grease and marine growth have been removed, if necessary wash the hull with a detergent or a degreaser so as to remove any contaminants. If you have any stubborn remnants of barnacles – or the white calcium deposit left after pressure washing they can be easily removed using Boat Bottom Cleanerhowever make sure you wear gloves and eye protection when using this product as it is quite aggressive.

    Preparation:

    Lightly abrade the old antifouling with 120 grit paper preferably used wet, make sure you wear a mask, gloves and eye protection; antifouling not only kills marine growth, any dust produced can create severe respiratory problems and irritation to humans. After rubbing down make sure all the slurry is washed off with fresh water. No doubt the poor weather over the last few weeks has delayed your antifouling however don’t be tempted to apply primer, antifouling etc when the substrate is not free of moisture!

    If you are changing to a different make/type of antifouling make sure it is compatible with the one you are covering, if not, or if you’re unsure of the existing antifouling, apply an appropriate barrier coat such as Seajet Underwater Primer or one recommended by your chosen antifouling manufacturer. All loose antifouling must be removed, if it is just small patches you should be able to feather the edges of the patches using your 120 grit so the area will not show through the new coating, patch coat these areas with the barrier coat followed by antifouling before giving the full hull a coating. If you have a build up of a number of seasons applications of antifouling you should perhaps consider removing these. Not a pleasant job but worthwhile as it will save you future problems! This can be done by just using a scraper, although it is often easier to use one of the gelcoat friendly antifouling removers or Peelaway – don’t be tempted to use standard paint removers as this may adversely affect your hulls gelcoat. Be careful not to damage any underlying epoxy coatings, when you have removed the old antifouling if your hull hasn’t had a protective coating of epoxy it may well be worthwhile coating with Seajet 117 Multipurpose Epoxy Primer to give protection against osmosis, however you must abide by the manufacturer’s instructions regarding temperature, mixing, application and over-coating materials.

    Keels: 

    Iron keels should be rust free, in an ideal world shot blasting and coating with several coats of Interprotect or the likes will give long lasting protection, if you have a Westerly with rusted keels (bilge or fin) it would be advisable to Tercoo blast or shot blast clean then leave as long as possible before sweep blasting again removing the surface rust before priming – Westerly keels are notorious for being porous and retaining water, shot blasting and immediately painting usually results in failure of the paint system owing to moisture retention in the steel under the old coating.

    If you are unable to shot blast, grinding clean and coating with 4-5 coats International Primocon (first coat thinned) or similar will give good protection, observe the recommended over coating times for various antifouling types.

    Alloy Hulls, Outdrives etc:

    If you have just purchased an alloy boat please note you must NOT use an antifouling containing copper, likewise alloy outdrives and outboard legs. Use something like International’s Trilux or the like and remember if antifouling a GRP hull fitted with outdrive(s) or outboards and it’s a copper based product that you are going to apply, it is recommended that you leave at least a 25mm gap around the unit.

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    Filling:

    If you have to fill any underwater surfaces as a result of hitting an underwater object or over enthusiastic use of a scraper, do not under any circumstances use a polyester filler, use only an epoxy based one such as Epifanes Epoxy Filler 1500.

    Masking Up: 

    When masking water lines make sure you use the ‘Blue’ 14 day tape product which not only gives a good crisp line but can also be easily removed on completion of the paint job. If you use standard paper masking tape ensure you remove it immediately you have finished painting; However if you have had the misfortune to leave this style of tape in place and find it impossible to remove, 3M Citrus Cleaner is an excellent product to assist, WD40 is also worth a try.

    Protection:

    Wear disposable gloves and eye protection when applying antifouling as splashes on hands and face irritate the skin and using thinners to remove them can make it worse by driving the material into the pores making it difficult if not impossible to remove.

    Application: 

    Apply the correct number of coats of antifouling as recommended by the manufacturer – usually a minimum of two, on high pressure areas on your hull (leading edge of keel, rudder etc) they can benefit with the addition of a patch coat before painting the whole hull. Do not be tempted to thin the antifouling, you are diluting the active ingredient! Use a roller as it will give a better coverage and finish than using a brush, if using a plastic paint tray place it / cover it in a plastic carrier bag before use, not only will you be able to use it again, many solvents in antifouling melt plastic paint trays leaving you with a sticky mess to roll onto your hull!

    Do not paint over your transducer with conventional antifouling, use a water based antifouling as this will not damage the transducer surface nor weaken the signal!

    Specific Boot topping paints such as International ‘Trilux’ or Hempel Waterline Boot Top perform better than standard antifouling as they tend to be of the ‘hard’ type, are stronger and will stand up to the occasional scrub during the season.

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    Propellers should be cleaned and polished with fine emery cloth or wet and dry. If you are in a heavy fouling area coat with Sea Jet Peller Clean or International ‘Prop-o-Drev’ this will help keep the prop clean whilst a coating of Propshield will be of benefit in lesser fouling areas. Dispose of masking tape, rollers and safety wear responsibly when you’ve finished.

    Anodes, remove if possible before antifouling, if there is still 2/3rds left and you’re leaving them in situ, either mask off or coat with soap before you start work, antifouling on the anode surface will prevent it working!

  • 302. They Look The Same But Which Is Better?

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    Maybe it's time for a rethink on zinc! Not my words, but those of that well known manufacturer of anodes MG DUFF who, of course, are proud to manufacture in the UK! With the emphasis these days on 'saving the planet' most folks will now acknowledge that we are at last slowly moving towards more environmentally friendly products, or cutting right back on our use of plastics. Back in Tynemouth Jenny is particularly proud, or smug if that is the correct word to use, that some 12 years ago when we last changed our car we, or was it she, ignored the advice of politicians and went back down the petrol route. After a couple of issues with our wheels last year (during our drive down to the cruising grounds of Corfu, driving not flying) we decided, for this year, to purchase an almost new, same make same size second hand estate car, once again with a petrol engine..... which we then discovered were almost as rare as hen's teeth but that's another story!

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    Zinc vs Aluminium, they look the same but which is better? Maybe it's a time for a rethink on zinc, as anodes made from this metal can only be used in salt water whilst aluminium can be used in salt and brackish water. The zinc anode has been traditionally used for over 60 years by boatowners worldwide however more and more aluminium ones are now being fitted as standard by leading UK boat builders! Whilst zinc anodes are widely available for all installations* aluminium anodes, which are available for most applications, have a 20% longer life (think sail drive and out drives that eat up traditional anodes at a fearsome rate.) Other advantages of aluminium anodes include a higher output = better protection and they are three times lighter than zinc, you keen racers will be pleased to note. They even cost less than zinc and of course they are more environmentally friendly.

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    In Everett Collier's excellent book 'The Boatowners Guide to Corrosion,' in the Appendix or Glossary he describes an anode as 'The electrode of an electrochemical cell with the more negative or less noble potential. The less noble  metal of an electrolytic cell that tends to corrode' So the question that is often asked is that 'how come an aluminium anode can protect a sail or out drive which is manufactured from the 'same' metal?' The answer is that your or my unit is manufactured from a very corrosion resistant alloy whilst the anode is not!

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    A word of caution however, under no circumstances fit a zinc pear shape hull anode ('cos you already have one as a spare) then go out and purchase an aluminium anode for fitting to the prop shaft, out drive or sail drive! Zinc and aluminium should never be mixed.

    * Regrettably the Beneteau prop anodes are not available in aluminium, apparently they are too costly to make in this material!

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