Description

T-Butylaminopropyltrimethoxysilane is a bifunctional organosilane coupling agent that combines an amino group with hydrolyzable methoxysilane functionality. This compound is essential for improving the adhesion between inorganic materials and organic polymers, enhancing composite strength and durability. It is primarily utilized by manufacturers in the coatings, adhesives, sealants, and elastomers (CASE) industries, as well as in the production of advanced composites and mineral-filled plastics.

Application

• As a coupling agent and adhesion promoter in epoxy, polyurethane, and acrylic-based coatings and adhesives.
• Surface treatment for glass fibers, minerals (e.g., silica, clay), and metals to improve bonding with polymer matrices.
• Modification of fillers and pigments in plastic and rubber composites to enhance mechanical properties and dispersion.
• Primer for improving paint adhesion on difficult substrates like aluminum and galvanized steel.
• Key ingredient in the formulation of moisture-curable sealants and RTV silicones.
• Used in the manufacture of foundry resins and sand cores to improve strength and thermal stability.
• Potential use as a surface modifier for nanoparticles in advanced material applications.

Basic Information

Product Name	T-Butylaminopropyltrimethoxysilane
CAS No.	174219-86-4
Molecular Formula	C10H25NO3Si
Molecular Weight	235.40 g/mol
Synonyms	N-(tert-Butyl)-3-aminopropyltrimethoxysilane; 3-(tert-Butylamino)propyltrimethoxysilane; tert-Butylaminopropyltrimethoxysilane; tert-Butyl-3-aminopropyltrimethoxysilane; N-tert-Butyl-3-aminopropyltrimethoxysilane; Silane A-1128 (common trade name); Amino Silane Coupling Agent; T-Butylamino Silane
EINECS	Contact for details

Quality Control

Our T-Butylaminopropyltrimethoxysilane is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including assay by GC or titration and identity confirmation by FT-IR, to ensure it meets precise specifications and consistent performance for industrial applications. A Certificate of Analysis (COA) detailing purity and key parameters is provided with every shipment.

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 polymerization.

Specification

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

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