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422 Barrier Coat Additive
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.
Designed for:
- Moisture Resistance
- Abrasion Resistance
- Preventing Gelcoat Blistering
PROJECT USES:
Create an abrasion and moisture-resistant surface in:
- Fibreglass Repairs
- Gelcoat Blister Repairs
- Boat Restoration
- Rudder Restoration
- Moisture Exclusion
PRODUCT SPECIFICATIONS:
- Colour | Light Grey
- Cures to Grey
MIX RATIOS:
Add 20% to 25% by weight of 422 to the mixed epoxy.
PRODUCT SIZES:
- 422 | 0.5kg
- 422B | 3.0kg
Additives
QUICK LINKS Helpful Tips, Safety Guidelines, Manuals, and More:
Thickening
Modifying with fillers and additives makes WEST SYSTEM epoxy extremely versatile for a wide variety of bonding and coating applications. Epoxy can be thickened to the ideal consistency needed for a particular job. Epoxy thickened with adhesive (high-density) fillers strengthens structural bonds, bridges gaps, and fills voids. Epoxy thickened with fairing (low-density) fillers is easily sanded and shaped after it cures.