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

Momentive Silquest A-122 Silane coupling agent

Momentive Silquest A-122 is a vinyltrimethoxysilane coupling agent from the Silquest series, designed to enhance adhesion between organic polymers and inorganic substrates like glass, metals, or minerals. It improves mechanical strength, moisture resistance, and composite durability in coatings, adhesives, sealants, and filled thermoplastics. Widely used for surface modification and crosslinking in high-performance applications.
  • momentive silquest a 122 silane coupling agent_fb646743
  • momentive silquest a 122 silane coupling agent_fb646743

Features Of Momentive Silquest A-122 Silane coupling agent

  1. Highly reactive aminoalkyl silane with dual functionality for covalent bonding to both organic polymers and inorganic substrates.

  2. Improved dispersion and interfacial adhesion in silica- and glass-filled composites, enhancing mechanical performance.

  3. Low volatility and favorable hydrolytic stability in aqueous and alcoholic formulations.

  4. Enables reduced filler loading while maintaining or improving composite toughness and tensile strength.

  5. Compatible with epoxy, phenolic, polyurethane, and rubber systems without compromising cure kinetics.

Typical Applications Of Momentive Silquest A-122 Silane coupling agent

  1. Reinforced epoxy composites for aerospace and electrical laminates.

  2. Adhesion promotion in glass fiber–reinforced thermosets and thermoplastics.

  3. Surface treatment of fumed and precipitated silica in silicone elastomers and RTV sealants.

  4. Filler modification in tire tread compounds and high-performance rubber goods.

  5. Primer formulation for metal and mineral substrates in protective coatings.

Specifications Of Momentive Silquest A-122 Silane coupling agent

Chemical TypeAminoalkyl silane (3-aminopropyltriethoxysilane)
Product FormLiquid
AppearanceClear, colorless to pale yellow liquid
Density (25°C)0.946–0.952 g/cm³
Refractive Index (25°C)1.418–1.422
pH (1% in water)10.0–11.5
SolubilityMiscible with water, ethanol, isopropanol, and acetone
Storage Stability≥12 months in unopened original container at 15–25°C


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