WEST SYSTEM–422 Barrier Coat Additive
422 Barrier Coat Additive
Combine this additive with 105 Epoxy Resin to increase moisture resistance and protect fiberglass hulls against osmotic blistering.
422 is a proprietary blend designed to improve epoxy's moisture-exclusion effectiveness. When blended into WEST SYSTEM Epoxy, Barrier Coat Additive helps prevent gelcoat blistering in polyester fiberglass boat hulls. It also increases epoxy's abrasion resistance. Light Gray.
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