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

Domestic KH550 LT550 Gamma-Aminopropyltriethoxysilane

Domestic KH550 LT550 Gamma-Aminopropyltriethoxysilane is a high-purity aminosilane coupling agent from Domestic’s KH550 series, model LT550. It enhances adhesion between organic polymers and inorganic substrates like glass, metals, or fillers. Widely used in sealants, coatings, and composite materials for improved mechanical strength, moisture resistance, and interfacial bonding performance.
  • domestic kh550 lt550 gamma aminopropyltriethoxysilane_811219da
  • domestic kh550 lt550 gamma aminopropyltriethoxysilane_811219da

Features Of Domestic KH550 LT550 Gamma-Aminopropyltriethoxysilane

  1. High-purity domestic synthesis ensures consistent reactivity and batch-to-batch reliability.

  2. Bifunctional molecular structure enables covalent bonding with both inorganic substrates (e.g., glass, metal oxides) and organic polymers.

  3. Excellent hydrolytic stability in anhydrous storage conditions, extending shelf life under recommended handling.

  4. Low volatility and favorable viscosity for easy metering and uniform dispersion in coating and adhesive formulations.

  5. Amine functionality provides strong adhesion promotion, corrosion inhibition, and enhanced interfacial compatibility in hybrid composites.

Typical Applications Of Domestic KH550 LT550 Gamma-Aminopropyltriethoxysilane

  1. Adhesion promoter in automotive sealants and structural bonding agents.

  2. Surface modifier for silica fillers and glass fibers in rubber and thermoset composites.

  3. Coupling agent in water-based acrylic and epoxy coatings for metal substrates.

  4. Functional additive in silicone-modified polyurethane elastomers and encapsulants.

  5. Pre-treatment agent for aluminum and stainless steel prior to painting or powder coating.

Specifications Of Domestic KH550 LT550 Gamma-Aminopropyltriethoxysilane

Chemical TypeGamma-aminopropyltriethoxysilane (APTES analog)
Product FormClear, colorless to pale yellow liquid
AppearanceHomogeneous, free from suspended matter or phase separation
Primary ApplicationsAdhesion promotion, surface modification, coupling agent
Key FeaturesBifunctional silane; hydrolysable ethoxy groups; primary amine terminus
BenefitsImproved composite strength, reduced interfacial failure, enhanced moisture resistance
pH (1% aqueous solution)10.0–11.5
Storage ConditionsKeep tightly sealed under dry nitrogen; store at 5–30°C away from moisture


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