Description

N,n-Bis(3-Trimethoxysilylpropyl)Urea is a specialized organosilicon compound that serves as a high-performance coupling agent and adhesion promoter. Its molecular structure, featuring both urea and alkoxysilane functionalities, enables it to form strong, durable bonds between organic polymers and inorganic substrates. This product is essential for formulators and manufacturers in the coatings, sealants, adhesives, and composite materials industries seeking to enhance product durability, mechanical strength, and environmental resistance.

Application

• As a silane coupling agent to improve the adhesion of polymers (e.g., epoxies, polyurethanes) to glass, metals, and mineral surfaces.
• In the formulation of high-performance coatings and paints to enhance corrosion resistance, scratch resistance, and long-term durability.
• As an additive in sealants and adhesives to improve bonding strength, flexibility, and moisture resistance.
• For surface modification of fillers and reinforcements (e.g., silica, glass fibers) in composite materials to ensure better dispersion and interfacial bonding with the polymer matrix.
• In the production of moisture-curable systems, where it acts as a crosslinker and stabilizer.
• As a key component in primers and adhesion promoters for automotive, aerospace, and construction applications.

Basic Information

Product Name	N,n-Bis(3-Trimethoxysilylpropyl)Urea
CAS No.	18418-53-6
Molecular Formula	C13H32N2O7Si2
Molecular Weight	384.58 g/mol
Synonyms	Urea, N,N-bis[3-(trimethoxysilyl)propyl]-; Bis(3-trimethoxysilylpropyl)urea; 1,3-Bis(3-trimethoxysilylpropyl)urea; N,N-Bis(3-(trimethoxysilyl)propyl)urea; Ureidosilane; Silane coupling agent KBM-585 (trade name analog); γ-Ureidopropyltrimethoxysilane (common name for related structures); Adhesion promoter 18418-53-6
EINECS	Contact for details

Quality Control

Our N,n-Bis(3-Trimethoxysilylpropyl)Urea is manufactured under strict quality control protocols to ensure batch-to-batch consistency and high purity. Production adheres to relevant industry standards, and each lot is accompanied by a comprehensive Certificate of Analysis (COA) detailing key parameters such as assay, identity, and impurity profiles. We are committed to meeting the specific requirements of our B2B partners, and custom specifications can be developed upon request.

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). Keep the container tightly sealed under an inert atmosphere (e.g., nitrogen) to prevent degradation from atmospheric moisture.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms
Assay (GC or HPLC)	≥ 95.0%
Density (at 20°C)	~1.05 g/cm³
Refractive Index (n20D)	~1.420
Moisture Content (KF)	≤ 0.5%

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