West System 406-7 Colloidal Silica Epoxy Filler, 5.5 ozThickens Epoxy

Epoxy thickening additive for viscosity control - WEST SYSTEM406 Colloidal Silica is a finely powdered Made in the USA additive used to thicken epoxy and control viscosity for improved handling in specific applications. , Prevents epoxy runoff - Adding this colloidal silica to epoxy resin and hardener mixtures helps prevent runoff on vertical and overhead surfaces, improving material placement without sagging. , Cures to a creamy off-white color - Mixed into epoxy, 406 colloidal silica produces a stable, creamy off-white paste suitable for fairing and other structural tasks. , Compatible with WEST SYSTEMepoxy systems - Designed for use with WEST SYSTEMepoxy resins and hardeners, this additive helps customize handling without altering the fundamental cure or strength of the base epoxy.