BSI FINISH-CURE™ 20 Minute Epoxy is a low-odor, high-performance alternative to polyester resins—perfect for surface finishing, fiberglass cloth application, and foam wing sheeting. With a longer working time and superior sandability, FINISH-CURE™ delivers a professional-quality surface that’s ready for primer and paint.

Ideal for applying fiberglass to wood or as a stand-alone coating, FINISH-CURE™ cures in 8 hours and can be heat-assisted for a lightweight, smooth finish. It’s especially useful in model aircraft construction, boat building, and other applications requiring a clean, durable surface. This epoxy sands more easily than other BSI adhesives and can be used with light or heavy fiberglass cloth.

Features:

• 20-minute working time with 8-hour full cure

• Low odor – a safer, cleaner alternative to polyester resins

• Best epoxy for sanding and finishing

• Excellent for fiberglassing wood surfaces and sheeting foam-core wings

• Can be heat-treated for a smoother, lighter finish

• Bonds wood, foam, fiberglass, and more

Application Tips:

• Apply above 85°F for best results

• Use a heat gun to remove excess and ensure even saturation

• Use with fiberglass cloth for structural and cosmetic surfacing

• Sand and prime after full cure for paint-ready finish

Specifications:

• Size: 4.5 oz (dual syringe/Parts A & B)

• Full cure: ~8 hours

• Working time: ~20 minutes

• Brand: BSI (Bob Smith Industries)