Description

2-(Triethoxysilyl)Propylamine is a bifunctional organosilane coupling agent containing both an alkoxysilyl group and a primary amine group. This dual functionality makes it a critical component for enhancing adhesion and compatibility between organic polymers and inorganic substrates. It is essential for manufacturers in the coatings, adhesives, sealants, and elastomers (CASE) industries, as well as in advanced materials like composites and surface-modified fillers.

Application

• As a coupling agent and adhesion promoter in epoxy, polyurethane, and acrylic-based paints, coatings, and primers.
• Surface modification of inorganic fillers (e.g., silica, glass fibers, minerals) to improve dispersion and bonding in polymer composites.
• Key intermediate in the synthesis of specialty silanes and silicone polymers for textile, paper, and leather treatment.
• Improving the water resistance and durability of mineral-filled systems and construction materials like concrete sealers.
• Used in the formulation of adhesives and sealants to enhance bond strength to glass, metals, and other difficult-to-bond surfaces.
• As a crosslinking agent or catalyst modifier in various silicone-based formulations.

Basic Information

Product Name	2-(Triethoxysilyl)Propylamine
CAS No.	36957-84-3
Molecular Formula	C9H23NO3Si
Molecular Weight	221.37 g/mol
Synonyms	3-Aminopropyltriethoxysilane; APTES; γ-Aminopropyltriethoxysilane; (3-Aminopropyl)triethoxysilane; A 1100; KBM-903; Dynasylan AMEO; Silquest A-1100; 3-Triethoxysilylpropylamine
EINECS	253-304-0

Quality Control

Our production of 2-(Triethoxysilyl)Propylamine adheres to stringent quality management protocols. Every batch is analyzed using advanced techniques like gas chromatography (GC) and titration to ensure consistent purity and performance. A comprehensive Certificate of Analysis (COA) detailing assay, identity, and impurity profiles is provided with each shipment to guarantee supply reliability and specification compliance for your formulations.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). This product is hygroscopic (moisture-sensitive); containers must be kept tightly sealed to prevent contact with atmospheric moisture, which can lead to hydrolysis and reduced efficacy.

Specification

Item	Specification
Appearance	Clear, colorless to pale yellow liquid
Identification (IR)	Conforms
Assay (GC)	≥ 98.0 %
Refractive Index (n20D)	1.420 - 1.425
Density (20°C)	0.94 - 0.96 g/mL
Color (APHA)	≤ 50

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.