Description

3-(Triethoxysilyl)-N,n-Bis-3-(Triethoxysilyl)-Propyl-Propane-1-Amine is a high-purity, multi-functional organosilane coupling agent with a branched molecular structure. This compound is engineered to provide superior adhesion promotion and surface modification by creating strong covalent bonds between inorganic substrates and organic polymers. It is essential for formulators and manufacturers in the coatings, adhesives, and advanced composites industries who require enhanced material performance, durability, and interfacial strength.

Application

• Adhesion Promoter in epoxy, polyurethane, and acrylic-based coatings and sealants for metals, glass, and minerals.
• Surface Modifier for silica, glass fibers, and other mineral fillers to improve dispersion and compatibility in polymer matrices.
• Crosslinking Agent in silicone rubber and RTV (Room Temperature Vulcanizing) formulations to enhance mechanical properties.
• Primer Component for automotive and aerospace composites to ensure strong bonding between layers.
• Coupling Agent in mineral-filled plastics and engineering thermoplastics to increase tensile strength and impact resistance.
• Waterproofing Agent in construction materials and stone treatments due to its ability to impart hydrophobic properties.

Basic Information

Item	Details
Product Name	3-(Triethoxysilyl)-N,n-Bis-3-(Triethoxysilyl)-Propyl-Propane-1-Amine
CAS No.	18784-74-2
Molecular Formula	C27H63NO9Si3
Molecular Weight	638.14 g/mol
Synonyms	N,N-Bis(3-triethoxysilylpropyl)amine; Bis(3-triethoxysilylpropyl)amine; 3-(Triethoxysilyl)-N-[3-(triethoxysilyl)propyl]-1-propanamine; Amino silane coupling agent; A-1130 (common trade designation); Silane AY 43-031; Dynasylan 1124; KH-792 (related silane variant); 1-Propanamine, 3-(triethoxysilyl)-N-[3-(triethoxysilyl)propyl]-
EINECS	242-558-1

Quality Control

Every batch of our 3-(Triethoxysilyl)-N,n-Bis-3-(Triethoxysilyl)-Propyl-Propane-1-Amine is manufactured under strict quality management systems. We ensure compliance with relevant industry standards and provide comprehensive Certificates of Analysis (COA) for each shipment, detailing purity, identity, and key physical-chemical parameters. Our quality commitment supports applications requiring consistent performance and reliable supply chain integrity.

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 material 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 to structure
Assay (GC)	≥ 95.0%
Refractive Index (n20/D)	1.430 - 1.440
Density (g/mL, 25°C)	1.00 - 1.05
Moisture (Karl Fischer)	≤ 0.5%

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