SikaBiresin AP077 Quart BPO Hardener for Repairs

The SikaBiresin AP077 is an advanced polyester filler and fairing compound designed to deliver a smooth, workable paste that cures quickly, making it ideal for various repair and finishing applications. This filler is notably easier to sand compared to conventional options and can be effortlessly finished to a feather edge. Applicators can use a squeegee, spatula, or flat tool for simple application, and once cured, it is compatible with nearly all types of coatings and decorative films.

Applications and Usage:

Perfect for gel coat blister repair, fiberglass parts repair, and filling cloth imprints on FRP panels. The material boasts excellent adhesive and bonding capabilities across various substrates including fiberglass, SMC, FRP, epoxy, graphite, Kevlar composites, as well as aluminum and wood.

• Exceptional adhesion
• Very quick setting
• Minimal shrinkage
• High service temperature
• Excellent finishing and machinability
• Accepts virtually all types of finishes
• Low moisture absorption for both above and below waterline applications