West System 422 Barrier Coat Additive, 16 oz


# A proprietary blend designed to improve cured epoxy’s moisture-exclusion effectiveness.
# 422 is used as a barrier coating additive to help prevent gelcoat blistering.
# 422 also increases the epoxy’s abrasion resistance.
# Cures to a light gray color.
# Add to mixed resin/hardener at the rate of 15 to 20% by weight -3 tablespoons per 8 fl. oz. epoxy (approximately 32 oz. per B group

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