Guangzhou Eric Wei Chemical Co., Ltd.
Guangzhou Eric Wei Chemical Co., Ltd.

Momentive CoatOSil 2812 Reactive Polydimethylsiloxane

Momentive CoatOSil 2812 is a reactive polydimethylsiloxane (PDMS) from the CoatOSil series, designed for covalent integration into acrylic, polyester, and alkyd resin systems. It enhances surface slip, mar resistance, and substrate wetting while maintaining clarity and compatibility. Its alkoxy-functional groups enable condensation curing with ambient moisture or thermal activation—ideal for high-performance coatings and inks.
  • momentive coatosil 2812 reactive polydimethylsiloxane_8b0dac71
  • momentive coatosil 2812 reactive polydimethylsiloxane_8b0dac71

Features Of Momentive CoatOSil 2812 Reactive Polydimethylsiloxane

  1. Reactive vinyl-functional PDMS enabling covalent bonding to acrylic, polyester, and epoxy resins.

  2. Low surface tension for superior substrate wetting and leveling in coating formulations.

  3. Thermally stable silicone backbone enhances film flexibility and thermal resistance.

  4. Non-yellowing performance ideal for clearcoats and high-gloss decorative finishes.

  5. Compatible with common organic solvents and conventional crosslinkers (e.g., melamines, isocyanates).

Typical Applications Of Momentive CoatOSil 2812 Reactive Polydimethylsiloxane

  1. Automotive OEM and refinish clearcoats.

  2. Industrial maintenance coatings for metal substrates.

  3. High-performance wood coatings requiring mar resistance and gloss retention.

  4. Plastic coatings for automotive interior trim and electronics housings.

  5. UV-curable and thermoset coil coatings.

Specifications Of Momentive CoatOSil 2812 Reactive Polydimethylsiloxane

Chemical TypeVinyl-functional polydimethylsiloxane
Product FormLiquid
AppearanceClear, colorless to pale yellow liquid
Primary ApplicationsReactive additive for thermosetting coatings
Key FeaturesVinyl functionality, low viscosity, hydrophobicity
BenefitsImproved slip, mar resistance, substrate adhesion, and surface uniformity
SolubilityMiscible with common organic solvents (e.g., xylene, MEK, acetone)
Storage StabilityStable at room temperature for ≥12 months in sealed container


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