West System® 207 Special Clear Hardener®. Developed for coating and fiberglass cloth application where an exceptionally clear, moisture-resistant, carbon fiber or natural wood finish is desired. Formulated for use with West System® 105 Epoxy Resin®. Will not blush or turn cloudy in humid conditions. Forms a high-strength, moisture-resistant solid with excellent bonding and barrier coating properties. Thin film applications roll out and tip off smoothly, requiring less sanding in preparation for finish coatings. Mix ratio is 3 parts resin to 1 part hardener by volume. Minimum cure temperature is 60 degrees F (16 degrees C). 0.33 gallon.

Cure Times at 72 degrees F (22 degrees C):

- Pot life (100 grams cupful): 20 to 26 minutes
- Working time (thin film): 100 to 120 minutes
- Solid state: 10 to 15 hours