Description

[2-[[3-(Trimethoxysilyl)Propyl]Amino]Ethyl]Urea is a bifunctional organosilane coupling agent that combines a reactive urea group with a hydrolyzable trimethoxysilyl group. This unique structure makes it a powerful adhesion promoter and surface modifier, crucial for enhancing the compatibility and bonding between inorganic materials and organic polymers. It is primarily needed by manufacturers in the adhesives, sealants, coatings, and composite materials industries seeking to improve product durability and performance.

Application

• Adhesives & Sealants: Acts as a key adhesion promoter, significantly improving bond strength and moisture resistance, especially on glass, metal, and mineral surfaces.
• Coatings & Paints: Used as a surface modifier to enhance the adhesion, scratch resistance, and weatherability of protective and decorative coatings.
• Fiberglass & Composite Materials: Serves as a critical sizing agent or coupling agent for glass fibers and mineral fillers, improving their dispersion and interfacial bonding with polymer matrices like epoxy, polyurethane, and nylon.
• Rubber & Tire Manufacturing: Improves the reinforcement of silica-filled rubber compounds, leading to better abrasion resistance, lower rolling resistance, and enhanced mechanical properties.
• Surface Treatment: Applied for the surface modification of silica, alumina, and other inorganic particles to increase their hydrophobicity and compatibility with organic systems.
• Polymer Modification: Can be used as a monomer or crosslinking agent to introduce functional groups into polymer chains, tailoring properties for specific applications.

Basic Information

Product Name	[2-[[3-(Trimethoxysilyl)Propyl]Amino]Ethyl]Urea
CAS No.	23779-33-1
Molecular Formula	C9H23N3O5Si
Molecular Weight	281.38 g/mol
Synonyms	N-[3-(Trimethoxysilyl)propyl]-N'-(2-aminoethyl)urea; Urea, N-[3-(trimethoxysilyl)propyl]-N'-(2-aminoethyl)-; 3-(Ureidoethyl)aminopropyltrimethoxysilane; Ureido silane; γ-Ureidopropyltrimethoxysilane; Silane AY 43-031; Dynasylan 1146; A-1160 (common industry designation)
EINECS	Contact for details

Quality Control

Our [2-[[3-(Trimethoxysilyl)Propyl]Amino]Ethyl]Urea is manufactured under a strict quality management system. Every batch undergoes rigorous analytical testing to ensure consistent purity and performance. Certificates of Analysis (COA) detailing key specifications such as assay, identity, and impurity profiles 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); containers must be kept tightly sealed to prevent degradation from atmospheric moisture.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms
Assay (GC or Titration)	≥ 95.0%
Refractive Index (n20D)	1.440 - 1.450
Density (20°C)	1.05 - 1.15 g/cm³

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