Description
While WEST SYSTEM Epoxy creates an excellent moisture barrier by itself, 422 Barrier Coat Additive is a proprietary blend designed to further improve cured epoxy’s moisture exclusion effectiveness. 422 is used as a barrier coating additive to help prevent gelcoat blistering in polyester fibreglass boats. 422 also increases the epoxy’s abrasion resistance. Add to any mixed WEST SYSTEM 105/200 Series Hardener combination.
- Moisture Resistance
- Abrasion Resistance
- Prevent Gelcoat Blistering
PROJECT USES:
Create an abrasion and moisture-resistant surface in:
- Fiberglass Repairs
- Gelcoat Blister Repairs
- Boat Restoration
- Rudder Restoration
- Moisture Exclusion
PRODUCT SPECIFICATIONS:
- Color | Light Gray
- Cures to Gray
MIX RATIOS:
- 15-20% by volume




