West System 406 Colloidal Silica Adhesive Filler

The West System 406 Colloidal Silica is a versatile epoxy filler that helps control the thickness of epoxy mixtures.

It prevents the resin from running or dripping, making it ideal for bonding, filling gaps, reinforcing joints and repairs on boats and yachts.

When mixed with epoxy resin and hardener, it creates a strong, smooth mixture with improved strength and abrasion resistance.

It is particularly useful for working on vertical surfaces and areas where the epoxy needs to stay in place.

Technical Specifications

• Type: Epoxy thickening and adhesive filler
• Material: Colloidal Silica
• Form: Fine powder
• Colour: Off-White
• Properties: Thickening, high strength and non-sagging
• Applications: Bonding, gap filling, filleting and reinforcing joints
• Suitable For: Marine repairs, fiberglass work and boat building
• Mixing: Add to previously mixed epoxy resin and hardener
• Mixing Ratio: Approximately 3–8% by weight, depending on the required thickness
• Compatibility: WEST SYSTEM epoxy resin systems

Available Sizes

• 275g
• 1.5kg

This product is an additive and must be mixed with epoxy resin and hardener before use.