Description

n-(3-(Trimethoxysilyl)Propyl)Butylamine is a bifunctional organosilane coupling agent featuring both an alkoxysilane group and a secondary amine group. This unique molecular structure enables it to act as a powerful adhesion promoter and surface modifier, creating strong bonds between inorganic substrates and organic polymers. It is essential for manufacturers in the coatings, adhesives, sealants, and elastomers (CASE) industries, as well as in advanced composite materials and surface treatment technologies.

Application

• Adhesion Promoter: Enhances the bond strength between mineral fillers (like glass, silica, metals) and organic polymer matrices in composites, sealants, and adhesives.
• Surface Modification: Used to treat pigments, nanoparticles, and glass fibers to improve dispersion, reduce agglomeration, and increase compatibility with resin systems.
• Crosslinking Agent: Functions as a co-curing agent or crosslinker in silicone and polymer formulations, improving thermal and mechanical properties.
• Primer Formulations: A key ingredient in primers for metals, glass, and concrete to promote coating adhesion and corrosion resistance.
• Rubber & Tire Industry: Improves the bonding of rubber to reinforcing materials like steel cord and fabric.
• Waterborne Systems: Employed as a stabilizing agent and adhesion promoter in water-based coatings and inks.
• Epoxy & Polyurethane Systems: Acts as an additive to enhance the mechanical strength and durability of cured epoxy and PU products.

Basic Information

Product Name	n-(3-(Trimethoxysilyl)Propyl)Butylamine
CAS No.	31024-56-3
Molecular Formula	C10H25NO3Si
Molecular Weight	235.40 g/mol
Synonyms	Butyl[3-(trimethoxysilyl)propyl]amine; N-Butyl-3-(trimethoxysilyl)propylamine; 3-(Trimethoxysilyl)propylbutylamine; N-Butyl-N-(3-trimethoxysilylpropyl)amine; N-Butylaminopropyltrimethoxysilane; Silane A-1121 (Trade Name Variant); Amino Silane Coupling Agent; γ-Butylaminopropyltrimethoxysilane
EINECS	Contact for details

Quality Control

Our n-(3-(Trimethoxysilyl)Propyl)Butylamine is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including GC, FTIR, and titration methods, to ensure consistent purity and performance. Certificates of Analysis (COA) documenting key specifications are available upon request to support your quality assurance and regulatory compliance needs.

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	Colorless to pale yellow clear liquid
Identification (IR)	Conforms
Assay (GC)	≥ 97.0%
Refractive Index (n20/D)	1.420 - 1.430
Density (20°C)	0.95 - 0.98 g/cm³

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