Description

Bis(Methyldiethoxysilylpropyl)Amine CAS NO 31020-47-0 is a specialized organosilicon compound featuring dual alkoxysilyl groups linked by an amine bridge. This unique structure makes it a highly effective coupling agent and adhesion promoter, crucial for enhancing the compatibility and bonding between organic polymers and inorganic substrates. It is primarily needed by manufacturers in the silicone rubber, sealant, adhesive, and composite materials industries seeking to improve product performance and durability.

Application

• Adhesion Promoter: Used in sealants, adhesives, and coatings to improve bonding to glass, metals, and mineral surfaces.
• Coupling Agent for Mineral-Filled Composites: Enhances the dispersion and interfacial bonding of fillers (e.g., silica, clay) in silicone and organic polymer matrices.
• Surface Modification Agent: Treats inorganic particles to improve their compatibility with organic systems.
• Crosslinking Agent/Co-Catalyst: Functions in silicone rubber formulations to modify cure characteristics and final properties.
• Fiberglass Sizing: Improves the interfacial adhesion between glass fibers and resin in reinforced plastics.
• Waterproofing Agent: Imparts hydrophobic properties to construction materials like concrete and stone.

Basic Information

Product Name	Bis(Methyldiethoxysilylpropyl)Amine
CAS No.	31020-47-0
Molecular Formula	C17H41NO4Si2
Molecular Weight	379.69 g/mol
Synonyms	N-[3-(Triethoxysilyl)propyl]-N-[3-(methyldiethoxysilyl)propyl]amine; 3-(Methyldiethoxysilyl)-N-[3-(triethoxysilyl)propyl]-1-propanamine; Bis(3-methyldiethoxysilylpropyl)amine; Amino-functional silane coupling agent; Silane A-2120 (common trade name reference); Adhesion promoter 31020-47-0; Amino silane crosslinker
EINECS	Contact for details

Quality Control

Our Bis(Methyldiethoxysilylpropyl)Amine is produced under stringent quality management systems. Each batch undergoes rigorous analytical testing, including assay, purity, and identity confirmation, to ensure it meets precise specifications and consistent performance for industrial applications. A Certificate of Analysis (COA) detailing all relevant 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/59-77°F). This product is hygroscopic (moisture-sensitive); containers must be kept tightly sealed to prevent contact with atmospheric moisture, which can lead to hydrolysis and degradation.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms
Assay (GC)	≥ 95.0%
Refractive Index (n20D)	1.420 - 1.430
Density (g/mL, 20°C)	0.92 - 0.96

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