Description

Bis([3-Triethoxysilyl)Propyl]Urea CAS NO 69465-84-5 is a high-purity organosilane coupling agent featuring dual urea and triethoxysilyl functionalities. This compound is engineered to enhance adhesion and compatibility between inorganic substrates and organic polymer matrices, addressing critical challenges in material durability and performance. It is essential for manufacturers in the adhesives, sealants, coatings, and advanced composite materials industries seeking to improve product longevity and mechanical properties.

Application

• As a coupling agent and adhesion promoter in epoxy, polyurethane, and silicone-based sealants and adhesives.
• Surface modification of glass fibers, minerals, and fillers to improve dispersion and interfacial bonding in polymer composites.
• Formulation of high-performance, weather-resistant protective coatings and paints for automotive and architectural applications.
• Enhancing the water resistance and mechanical strength of fiber-reinforced plastics (FRP) and engineering plastics.
• Used in the synthesis of hybrid organic-inorganic materials (ORMOSIL) for specialized optical or electronic applications.
• As a crosslinking agent or modifier in silicone rubber formulations to tailor properties like tear strength and heat resistance.

Basic Information

Product Name	Bis([3-Triethoxysilyl)Propyl]Urea
CAS No.	69465-84-5
Molecular Formula	C20H48N2O7Si2
Molecular Weight	508.8 g/mol
Synonyms	1,3-Bis(3-triethoxysilylpropyl)urea; N,N'-Bis(3-(triethoxysilyl)propyl)urea; Urea, 1,3-bis[3-(triethoxysilyl)propyl]-; Ureidosilane; Silane coupling agent Z-6687; SCA-U; Bis(triethoxysilylpropyl)urea; 3-(Triethoxysilyl)-N-[3-(triethoxysilyl)propyl]propyl-1-urea
EINECS	Contact for details

Quality Control

Our production of Bis([3-Triethoxysilyl)Propyl]Urea adheres to stringent quality management protocols. Every batch undergoes comprehensive analytical testing, including assay, identity confirmation, and impurity profiling, to ensure consistency and high purity. Certificates of Analysis (COA) documenting all critical parameters are available upon request to support your quality assurance and regulatory 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 material is hygroscopic (moisture-sensitive); containers must be kept tightly sealed to prevent degradation from atmospheric moisture.

Specification

Item	Specification
Appearance	Colorless to pale yellow clear liquid
Identification (IR)	Conforms to structure
Assay (GC or HPLC)	≥ 95.0%
Refractive Index (n20D)	1.420 - 1.430
Density (g/mL, 20°C)	1.00 - 1.05

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