BSI Finish-Cure 20 Minute Epoxy

Finish-Cure 20 minute epoxy is an excellent, low-odour substitute for polyester resins. It can be used for applying fibreglass cloth to wood or by itself to give wood a surface ready for primer and paint. Finish-Cure can be sanded the easiest of all our epoxies and is excellent for the sheeting of foam core wings. Allow 8 hours for full curing. For best results, Finish-Cure should be heated to a temperature above 29 degrees Celsius or, when applying lightweight fiberglass, lay cloth on balsa first, then brush on Finish-Cure. When fully saturated, go over the surface with a heat gun, and then squeegee off excess epoxy with a playing card from an old deck. Heat and remove excess several times for a lightweight finish. If the room temperature is below 21 degrees Celsius, use a heat gun on the surface several times for the next 2 hours. When dry, lightly sand, then fill the surface with a low-weight spackling compound, scraping off excess with a playing card. Sand to a smooth finish ready for primer. For heavyweight fibreglass, apply the epoxy before and after laying down the cloth. Finish-Cure is best mixed in a disposable cup.

USES

Works Best On:

• Fibreglass
• White Foam
• Laminating
• Water-Resistant

Works Good On:

• Balsa Wood
• Hard Wood

DIRECTIONS

Finish-Cure is an excellent substitute for polyester finishing resins. It can be used for applying fibreglass cloth to wood or used by itself to give wood a surface ready for primer and paint.

Finish-Cure IS NOT A STRUCTURAL EPOXY. Finish-Cure is primarily used for Coating and Finishing. It is also the best choice for applying cloth to the inside of epoxy fibreglass fuselages. It’s also commonly used for the sheeting of foam wings.

When 28 grams or more is mixed in a cup, the working time (pot life) is 20 minutes. When spread into thin layers, the working time is approximately 40 minutes.

THE FINISH AREA MUST REMAIN ABOVE 24°C FOR 8 HOURS FOR PROPER CURE. If the ambient temperature is below 234°C, heat Finish-Cure Epoxy and Hardener bottles with tops removed in the microwave for 20 seconds (use less time for partial bottles). After applying, you can occasionally apply a heat gun during the curing time or cover the project with a large cardboard box with a lamp placed inside to maintain a higher temperature.

For applying to lighter weight fibreglass, lay the cloth on the surface and brush Finish-Cure through the cloth. For heavier cloth, apply the epoxy on the surface first, then brush Finish-Cure through the cloth. When using Finish-Cure™ for the sheeting of foam wings, make sure to apply Finish-Cure to the wood and not the foam. Acetone and isopropyl alcohol work as the best solvents for cleaning uncured epoxy from surfaces.