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

Momentive Silquest A-1128 Aromatic-modified polyaminoalkyl silane

Momentive Silquest A-1128 is an aromatic-modified polyaminoalkyl silane coupling agent designed to enhance adhesion between organic polymers and inorganic substrates like glass, metals, or minerals—widely used in coatings, adhesives, and composite formulations for improved durability, moisture resistance, and interfacial bonding performance.
  • momentive silquest a 1128 aromatic modified polyaminoalkyl silane_62f15a2d
  • momentive silquest a 1128 aromatic modified polyaminoalkyl silane_62f15a2d

Features Of Momentive Silquest A-1128 Aromatic-modified polyaminoalkyl silane

  1. Enhanced hydrolytic stability due to aromatic modification, improving shelf life and handling robustness.

  2. High amine functionality provides superior adhesion promotion between organic polymers and inorganic substrates (e.g., glass, metals, minerals).

  3. Reduced volatility and improved odor profile compared to aliphatic amino-silanes, supporting safer industrial handling.

  4. Excellent compatibility with epoxy, phenolic, and polyurethane resin systems for use in high-performance composites and coatings.

  5. Enables covalent bonding at interface, enhancing moisture resistance and long-term durability of bonded assemblies.

Typical Applications Of Momentive Silquest A-1128 Aromatic-modified polyaminoalkyl silane

  1. Adhesion promoters in structural adhesives and sealants for automotive and aerospace assembly.

  2. Surface treatment agents for mineral-filled thermosets (e.g., fiberglass-reinforced plastics and cast polymer composites).

  3. Performance additive in epoxy-based electrical encapsulants and potting compounds.

  4. Interfacial modifier in silica-reinforced rubber compounds for improved filler dispersion and tear strength.

Specifications Of Momentive Silquest A-1128 Aromatic-modified polyaminoalkyl silane

Chemical TypeAromatic-modified polyaminoalkyl silane
Product FormLiquid
AppearancePale yellow to amber clear liquid
Primary ApplicationsAdhesion promotion, surface modification, coupling agent in composites and coatings
Key FeaturesHydrolytically stable, low volatility, high amine functionality, aromatic backbone
BenefitsImproved bond durability, enhanced moisture resistance, safer handling vs. aliphatic analogues
ReactivityReacts with silanol groups on inorganic surfaces and epoxy/isocyanate functional groups in resins


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