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

AB Specialty Silicones Andisil 2120 Diamino-functional silane

AB Specialty Silicones Andisil 2120 is a diamino-functional silane coupling agent designed to enhance adhesion between organic polymers and inorganic substrates like glass, metals, or minerals. It improves mechanical strength, moisture resistance, and interfacial bonding in composites, sealants, and coatings. Widely used in RTV silicones, epoxy systems, and tire cord adhesion promoters.
  • ab specialty silicones andisil 2120 diamino functional silane_7e96e273
  • ab specialty silicones andisil 2120 diamino functional silane_7e96e273

Features Of AB Specialty Silicones Andisil 2120 Diamino-functional silane

  1. Bifunctional diamino structure enables dual-site covalent bonding with both inorganic substrates (e.g., glass, metal oxides) and organic polymers.

  2. Enhanced hydrolytic stability compared to monoamino silanes, supporting robust performance in aqueous-based formulations.

  3. Low volatility and high thermal stability, facilitating safe handling and compatibility with elevated-temperature processing.

  4. Improves interfacial adhesion, dispersion, and mechanical reinforcement in filled polymer systems.

  5. Compatible with a broad range of resins including epoxies, phenolics, polyurethanes, and acrylics.

Typical Applications Of AB Specialty Silicones Andisil 2120 Diamino-functional silane

  1. Adhesion promotion in structural adhesives and sealants for automotive and aerospace composites.

  2. Surface modification of silica, clay, and carbon black fillers in rubber and thermoplastic compounds.

  3. Hybrid sol-gel precursor in functional coatings requiring corrosion resistance and substrate bonding.

  4. Reactive coupling agent in fiber-reinforced polymer (FRP) matrices for wind turbine blades and pultruded profiles.

  5. Performance enhancer in encapsulants and underfills for electronics packaging.

Specifications Of AB Specialty Silicones Andisil 2120 Diamino-functional silane

Chemical TypeDiamino-functional alkoxysilane
Product FormLiquid
AppearanceClear, colorless to pale yellow liquid
Primary ApplicationsAdhesion promoter, filler coupling agent, surface modifier
Key FeaturesBifunctional amine reactivity, hydrolytically stable, low odor
BenefitsImproved composite strength, reduced moisture sensitivity, enhanced filler-matrix compatibility
Molecular Weight (approx.)268 g/mol
Storage ConditionsStore in cool, dry place under nitrogen; protect from moisture and direct sunlight


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