Features are:
- Improves epoxy’s abrasion resistance or moisture resistance.
- Include Aluminum Powder, Barrier Coat Additive, Graphite Powder.
- Helps prevent gelcoat blistering in polyester fiberglass boat bulls.
- Cures to a light gray color.
- Add to mixed resin/hardener at the rate of 15 to 20% by volume or 3 tablespoons per 8 fl oz of epoxy.
- 16 oz can of 422 will modify approximately half a gallon of mixed epoxy.
422 Barrier Coat Additive Safety Data (pdf) |