ADDSiL™ 2152 — Methacrylate-Terminated Silicone

Product Overview

ADDSiL™ 2152 is a difunctional reactive silicone oligomer with terminal methacrylate groups. Free-radical copolymerization with compatible unsaturated monomers and oligomers incorporates silicone segments into the polymer or crosslinked network. The supplied TDS reports an approximate molecular weight of 2,000.

Key Features

• Reactive methacrylate end groups for free-radical copolymerization.
• Chemically incorporates silicone segments into compatible polymer systems.
• Can improve surface slip, smoothness, hydrophobicity and release characteristics.
• Can improve flexibility of the polymer matrix.

Physical Properties

Selected values from the original TDS. Refer to that document for conditions and whether values are typical or specification limits.

Typical Applications

• Silicone-modified acrylic and methacrylic resins.
• Functional coatings and printing inks.
• UV-curable systems.
• Unsaturated polyester resins.

Technical Considerations

Copolymerize with compatible acrylate, methacrylate and other unsaturated monomers using an appropriate free-radical process. For silicone-modified (meth)acrylic polymers, select the monomers, initiator and solvent where required, and suitable reaction conditions. In UV-curable formulations, use as a reactive silicone component with compatible unsaturated oligomers and monomers.

The TDS does not specify a universal addition level. Determine compatibility, cure response and final film performance in the intended resin system. Reported physical values are typical, not specifications. Keep sealed in a cool, dry, ventilated place away from heat and direct sunlight; the stated unopened shelf life is 12 months. Consult the current SDS before handling.

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