Description:
Bob Smith Industries BSI-209 Finish-Cure 20 Minute Epoxy, 4.5 oz.
Finish-Cure 20 min. epoxy is an excellent, low odor substitute for polyester resins. It can be used for applying fiberglass 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 85 degrees F or applying light weight 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 light weight finish. If room temperature is below 70 degrees F use a heat gun on the surface several times for the next 2 hours. When dry, lightly sand, then fill surface with a low weight spackling compound, scrapping off excess with a playing card. Sand to ak smooth finish ready for primer. For heavy weight fiberglass, apply the epoxy before and after laying down the cloth. Finish-Cure is best mixed in a disposable cup.
Directions:
Finish-Cure is an excellent substitute for polyester finishing resins. It can be used for applying fiberglass 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 fiberglass fuselages. It™s also commonly used for the sheeting of foam wings.
When an ounce 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 75° FOR 8 HOURS FOR PROPER CURE. If ambient temperature is below 75°, 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 project with a large cardboard box with a lamp placed inside to maintain a higher temperature.
For applying to lighter weight fiberglass, 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
