West System 207 Clear Hardener
Clear and moisture resistant finish
West System 207 Special Clear Hardener is developed for coating and fibreglass cloth application where an exceptionally clear, moisture-resistant, clear carbon fibre or natural wood finish is desired. 207 Hardener will not blush or turn cloudy in humid conditions. Thin film applications roll out and tip off smoothly, requiring less sanding in preparation for finish coatings.
Professional and first-time builders like 207 because it is reliable and easy to use. Three coats or more can be applied in one day without additional surface preparation. Fewer coats are required to fill fiberglass weave and in most cases the final coating can be sanded the following day. Builders also appreciate the excellent fiberglass wet-out characteristics achieved with 105/207, yet it won’t drain from vertical surfaces like the very slow curing, low-viscosity epoxies.
105/207 has strong physical properties, so it can be used as a structural adhesive for gluing and laminating. It has excellent compatibility with paints and varnishes. An ultraviolet inhibitor in 207 helps provide a beautiful, long lasting finish when used with quality UV-filtering top coat.
West System 207 Special Clear Hardener Features:
- Formulated for use with West System 105 Epoxy Resin (Part 1)
- Blush free and will not turn cloudy in humid conditions
- Thin film applications roll out and tip off smoothly, requiring less sanding in preparation for finish coatings
- High strength
- Moisture resistant
- Excellent compatibility with paints and varnishes
- Project uses: marine, boat repair, clear casting, coating, laminating, clear coating wood surfaces
West System 207 Special Clear Hardener Specifications:
- Mix ratio 3 parts resin: 1 part hardener
- Minimum recommended temperature: 16°C (60°F)
- Cure time:
- Pot life (100 grams cupful): at 22°C (72°F): 20 to 26 minutes
- Working time (thin film) at 22°C (72°F): 100 to 120 minutes
- Solid state at 22°C (72°F): 10 to 15 hours
- Cure to working strength: 1 to 4 days
- Cure temperature: minimum - at 16°C (60°F)
