West System 403 Microfibres
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Next-day UK delivery available
Order before 3pm — from £3.95
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Available from our North Shields store
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Unused & original packaging

West System

West System 403 Microfibres

Professional-grade marine product — trusted by boaters across the UK.

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£9.50 £12.95 Save £3.45

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Next-day UK delivery available — order before 3pm
Same-day collection from our North Shields store
Expert advice — call 0191 414 0065

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West System 403 Microfibres are high-quality, light-weight fillers designed for use with epoxy systems in the marine industry. These microfibres improve the strength and bonding characteristics of epoxy, making them ideal for enhancing the durability of repairs and providing e...

West System 403 Microfibres are high-quality, light-weight fillers designed for use with epoxy systems in the marine industry. These microfibres improve the strength and bonding characteristics of epoxy, making them ideal for enhancing the durability of repairs and providing excellent adhesion to wood, fiberglass, and metals. They also reduce the brittleness of cured epoxy, allowing for effective control of viscosity during application. Perfect for boat building and repair applications, West System 403 Microfibres ensure a smooth and resilient finish for all your marine projects.

Description

West System 403 Microfibres are designed specifically for use with WEST SYSTEM Epoxy to enhance its performance in a variety of marine applications. These ultra-fine glass microfibres are effective for thickening epoxy, improving its texture and reducing sagging, making them ideal for vertical applications. By adding 403 Microfibres to epoxy, users can achieve a trowelable consistency that is perfect for filling gaps, creating fillets, and performing structural repairs. The addition of microfibres also contributes to the structural integrity of the cured epoxy, ensuring high tensile and impact strength. These microfibres are particularly beneficial when working on boats, kayaks, and other marine vehicles, as they create a robust bond that withstands harsh marine environments. The increased viscosity helps prevent run-off during application, allowing for precise control in complex repair situations. Additionally, West System 403 Microfibres are compatible with a wide range of WEST SYSTEM Epoxy products, making them a versatile choice for both professional boatbuilders and DIY enthusiasts. For those looking to achieve a durable, long-lasting repair in their marine projects, West System 403 Microfibres serve as an essential additive, providing enhanced strength and ease of use in various conditions.

Specification
Specification Details
Product Name West System 403 Microfibres
Type Filler
Appearance White powder
Mix Ratio Varies depending on application
Density Approximately 0.2 g/cm³
Recommended Use Thickening epoxy for filleting and fairing
Packaging Various sizes available
Shelf Life Indefinite if stored properly
Next-day UK delivery
Available on most items — order before 3pm. From £3.95.
Same-day collection — North Shields
Order online or call ahead — collect from our North Shields store today.
Free delivery over £100
Free standard delivery on all qualifying orders to UK mainland addresses.
Returns — 30 days
Unused, original packaging. Full returns policy →
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Why buy from Marine Chandlery?

  • UK marine specialists, based in North Shields
  • Next-day UK delivery available
  • Same-day collection from our store
  • Expert advice before and after purchase
  • Carefully selected marine-grade products
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