West System 422 Barrier Coat Additive

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West System 422 Barrier Coat Additive

Buy West System 422 Barrier Coat Additive for marine yacht epoxy projects and Osmosys treatment, with free delivery to the UK. 


A proprietary blend designed to improve the moisture-exclusion effectiveness of West System epoxy and to combat osmosis. It is an excellent additive for providing a barrier coating to overcome gelcoat blistering and also increases the abrasion resistance. Add 20% to 25% by weight to the mixed epoxy.

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    West System 422 Barrier Coat Additive