Description

3-Ureidopropyltriethoxysilane is a bifunctional organosilane coupling agent containing both a hydrolyzable ethoxysilyl group and a reactive ureido functional group. This dual functionality makes it a critical component for enhancing adhesion and compatibility between inorganic materials and organic polymers. It is primarily used by manufacturers in the composites, coatings, and sealants industries to improve the mechanical properties and durability of their products. Its ability to form strong covalent bonds at interfaces addresses key challenges in material performance and longevity.

Application

• As a coupling agent in mineral-filled composites (e.g., glass fiber, silica, clay) to improve mechanical strength and moisture resistance.
• Surface treatment for pigments and fillers to enhance dispersion and stability in polymer matrices, paints, and coatings.
• Adhesion promoter in sealants, adhesives, and rubber compounds, particularly for bonding to glass, metals, and mineral surfaces.
• Modifier for silica surfaces in chromatography and other specialized chemical applications to introduce specific functional groups.
• Key ingredient in the formulation of primers and sizing agents for fiberglass and other reinforcing fibers.
• Used in the synthesis of hybrid organic-inorganic materials (ORMOSILs) for advanced coatings and optical applications.

Basic Information

Product Name	3-Ureidopropyltriethoxysilane
CAS No.	116912-64-2
Molecular Formula	C10H24N2O4Si
Molecular Weight	264.40 g/mol
Synonyms	Ureidopropyltriethoxysilane; 3-(Triethoxysilyl)propylurea; N-[3-(Triethoxysilyl)propyl]urea; Ureido silane; Silane A-1160; Dynasylan 1506; Ureidopropyltrimethoxysilane analog (ethoxylated version); γ-Ureidopropyltriethoxysilane
EINECS	Contact for details

Quality Control

Our 3-Ureidopropyltriethoxysilane is manufactured under strict quality management systems to ensure batch-to-batch consistency and high purity. The product undergoes rigorous analytical testing, including assay by GC or titration, identity confirmation by FT-IR, and control of key impurities. Certificates of Analysis (COA) detailing all specifications and test results are provided with each shipment 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). 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	Colorless to pale yellow clear liquid
Identification (IR)	Conforms to reference spectrum
Assay (GC)	≥ 97.0%
Refractive Index (n20/D)	1.385 - 1.395
Density (20°C)	1.00 - 1.05 g/cm³

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