Description

Bis(Trimethoxysilylpropyl)Amine is a bifunctional organosilane coupling agent containing both alkoxysilyl and secondary amine functional groups. This unique structure makes it a critical component for enhancing adhesion, cross-linking, and compatibility between organic polymers and inorganic substrates. It is essential for formulators and manufacturers seeking to improve the mechanical properties, durability, and performance of composite materials. Key industries that rely on this silane include adhesives & sealants, coatings, and advanced rubber compounding.

Application

• Adhesives & Sealants: Acts as a powerful adhesion promoter, especially for epoxy, polyurethane, and acrylic-based systems on glass, metal, and mineral surfaces.
• Coatings & Paints: Improves wet adhesion, corrosion resistance, and the durability of protective and decorative coatings on challenging substrates.
• Rubber & Tire Manufacturing: Functions as a bifunctional coupling agent in silica-filled rubber compounds, enhancing tensile strength, abrasion resistance, and reducing rolling resistance.
• Fiberglass & Composite Materials: Used as a sizing or finishing agent for glass fibers to improve resin matrix bonding and composite mechanical performance.
• Mineral & Filler Treatment: Modifies the surface of silica, clay, and other fillers to improve their dispersion and compatibility in polymer matrices.
• Cross-linking Agent: Serves as a co-reactant or cross-linker in polymer systems to enhance thermal stability and chemical resistance.

Basic Information

Product Name	Bis(Trimethoxysilylpropyl)Amine
CAS No.	82985-35-1
Molecular Formula	C12H31NO6Si2
Molecular Weight	341.55 g/mol
Synonyms	N-[3-(Trimethoxysilyl)propyl]-1,3-propanediamine, 3,3'-(Azanedyl)bis(propyltrimethoxysilane); Bis(3-trimethoxysilylpropyl)amine; 3-(Trimethoxysilyl)-N-[3-(trimethoxysilyl)propyl]-1-propanamine; Silane A-1170 (common trade name); Amino silane coupling agent; Bifunctional aminosilane
EINECS	Contact for details

Quality Control

Our Bis(Trimethoxysilylpropyl)Amine is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing to ensure consistency and compliance with industry standards. Key parameters such as purity, amine content, and methoxy content are verified. Certificates of Analysis (COA) documenting these results are available upon request to support your quality assurance protocols.

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). Keep the container tightly sealed under a dry, inert atmosphere (e.g., nitrogen) to prevent hydrolysis and degradation upon contact with atmospheric moisture.

Specification

Item	Specification
Appearance	Clear, colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Assay (GC)	≥ 95.0%
Refractive Index (n20/D)	1.428 - 1.432
Density (g/mL, 25°C)	1.04 - 1.07
Amino Value	Contact for details

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