Sika Biresin AP112 White Gallon BPO Hardener for Composite Repairs and Bonding

SikaBiresin AP112 White Gallon BPO Hardener Required

SikaBiresin AP112 is a fibrous filler that makes it very useful for increased bonding strength or for rebuilding broken or void areas in SMC, RIM, and other thermoset composites. It is a smooth thixotropic paste system that exhibits easy mixing and stable application qualities. It can be applied in varying degrees of thickness with minimal shrinkage and can be used for deeper surface composite repairs before final surfacing with a fairing compound.

Features:

• Exceptional adhesion
• Quick setting
• Minimal shrinkage

Usage:

SikaBiresin AP112 can be used in the following bonding applications: FRP composites to FRP, rebuilding broken areas, metal inserts to fiberglass, marine fabrication, metal to concrete, detail blocks to FRP, wood to wood bonding, and metal to metal bonding.

Advantages:

• Exceptional adhesion
• Quick setting
• Minimal shrinkage
• No bleed out
• Excellent finishing and machinability
• Accept virtually all types of finishes
• Low moisture absorption
• High impact strength

The Sika Biresin AP112 is a versatile fibrous filler designed for high-strength bonding and rebuilding in thermoset composites such as SMC and RIM. This white, thixotropic paste offers ease of mixing and smooth application, making it ideal for repairing broken or void areas in fiberglass, marine structures, and other composite materials. Its ability to be applied in varying thicknesses with minimal shrinkage ensures a professional finish, even in deeper surface repairs, before final finishing with a suitable fairing compound.

Engineered for durability, Sika Biresin AP112 exhibits exceptional adhesion to a wide range of substrates including fiberglass, metals, concrete, and wood. It features quick setting characteristics, reducing downtime in manufacturing or repair processes, and minimizes shrinkage to maintain dimensional stability. The product is also known for its excellent machinability and ability to accept virtually all types of finishes, providing flexibility in finishing options. Its low moisture absorption and high impact strength further enhance its suitability for demanding applications in marine, automotive, and industrial sectors.

Application versatility is a key benefit of Sika Biresin AP112, which can be used for bonding FRP composites to themselves, rebuilding broken or damaged areas, attaching metal inserts to fiberglass, and bonding metal to concrete or wood. Whether used for detailed surface finishing or structural repairs, this product ensures a durable, reliable bond that withstands harsh environments. Its ease of use and superior properties make it a preferred choice for professionals seeking consistent, high-quality results in composite repair and bonding tasks.

Features:

• Exceptional adhesion to multiple substrates including fiberglass, metal, concrete, and wood

• Quick setting for efficient workflow

• Minimal shrinkage maintains dimensional stability during curing

• No bleed out ensures a clean application

• Excellent finishing and machinability for detailed work

• Accepts virtually all types of surface finishes

• Low moisture absorption enhances durability

• High impact strength for demanding applications