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- 406 Colloidal Silica is an epoxy thickening additive used to control the viscosity of the epoxy.
- Prevents epoxy runoff in vertical and overhead joints.
- Creates a smooth mixture, ideal for general epoxy bonding and filleting.
- Used to improve strength, abrasion resistance, and consistency of epoxy fairing compounds.
- Cures to an off-white color.
West System 406-2 New Colloidal Silica 1. 7 oz.