SikaBiresin® AP077 White Gallon BPO Hardener RequiredSikaBiresin® AP077 is a polyester filler and fairing compound that offers the user a smooth workable paste with a set fast cure to expedite those applications for repair or finish. It is easier to sand than conventional fillers and can be finished to a feather edge. This material can be easily applied with a squeegee, spatula, or flat tool, and once cured will accept virtually all types of coatings and decorative films.Features:Exceptional adhesionVery quick settingMinimal shrinkageUsage:SikaBiresin® AP077 can be used in the following applications: gel coat blister repair, fiberglass parts repair, and filling cloth imprint on FRP panels. This material has excellent adhesive and bond strength to fiberglass, SMC, FRP, epoxy, graphite, and Kevlar® composites as well as aluminum, wood, and other substrates.Advantages:Exceptional adhesionVery quick settingMinimal shrinkageHigh service temperatureExcellent finishing and machinabilityAccept virtually all types of finishesLow moisture absorption for above or below waterline applications