SikaBiresin AP112 White Gallon is a high-performance fibrous filler designed to boost bonding strength and rebuild broken or void areas in SMC, RIM, and other thermoset composites. This formulation requires a BPO hardener for curing and is packaged as a white gallon for straightforward handling and storage.
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Packaging: White gallon
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Form: Thixotropic, smooth paste for easy mixing and stable application
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Material and purpose: Fibrous filler that boosts bonding strength and rebuilds voids in SMC, RIM, and other thermoset composites
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Hardener requirement: AP112 requires a BPO hardener for curing
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Application performance: Apply varying thicknesses with minimal shrinkage; ideal for deeper surface repairs
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Finish and machinability: Finishes smoothly with a fairing compound; excellent finishing and machinability for sanding and shaping
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Finish compatibility: Accepts virtually all finishes to match your final surface
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Moisture and durability: Low moisture absorption; high impact strength for durable repairs
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Recommended uses: Bonding FRP to FRP, rebuilding broken areas, metal inserts to fiberglass and other substrates, marine fabrication and protective repairs, wood-to-wood and metal-to-metal bonding
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Adhesion and cure performance: Delivers exceptional adhesion for durable bonds with quick setting to speed repair workflows; minimizes shrinkage across multi-pass applications and helps prevent bleed-out to keep surfaces clean and repair-ready
SikaBiresin AP112 finishes smoothly and accepts virtually all finishes to match the final surface, while its low moisture absorption protects against water-related weakening. The high impact strength supports durable repairs under stress, making it well-suited for bonding FRP components, rebuilding damaged areas, and securing metal inserts to fiberglass and other substrates—as well as marine fabrication and protective repairs. For deep repairs, AP112 enables a seamless transition to the final surface with minimal post-processing.
