Description

Silanamine, 1,1,1-Trimethyl-n-(Trimethylsilyl)-, Hydrolysis Products With Silica is a specialized organosilicon compound that serves as a highly effective surface modifier and coupling agent. Its core value lies in its ability to impart hydrophobic and organophilic properties to inorganic substrates, significantly enhancing compatibility and performance in composite materials. This product is essential for manufacturers in the coatings, adhesives, sealants, and elastomers (CASE) industries, as well as for advanced material scientists developing high-performance composites and functional fillers.

Application

• As a surface treatment agent for silica, silicates, and other mineral fillers to improve dispersion in polymer matrices and reduce moisture sensitivity.
• As a key component in the formulation of hydrophobic coatings and water-repellent surface treatments for construction materials and textiles.
• To enhance the mechanical properties and moisture resistance of silicone rubber, epoxy resins, and polyurethane composites.
• As a coupling agent in adhesive and sealant formulations to improve adhesion to inorganic substrates.
• In the production of reinforced plastics and nanocomposites for the automotive and aerospace sectors.
• For the modification of pigments and fillers in specialty inks and coatings to control rheology and stability.

Basic Information

Product Name	Silanamine, 1,1,1-Trimethyl-n-(Trimethylsilyl)-, Hydrolysis Products With Silica
CAS No.	68909-20-6
Molecular Formula	Contact for details
Molecular Weight	Contact for details
Synonyms	Hexamethyldisilazane treated silica; HMDS-treated silica; Silica, reaction products with 1,1,1-trimethyl-N-(trimethylsilyl)silanamine; Hydrophobic silica from hexamethyldisilazane; Silylated silica; Fumed silica, silylated; Trimethylsilylated silica gel; Amorphous silica, silylated
EINECS	Contact for details

Quality Control

Our production of this silica-based modifier adheres to strict quality management protocols to ensure batch-to-batch consistency and performance reliability. Each lot is characterized for critical parameters such as degree of silylation, surface area, and hydrophobicity. A comprehensive Certificate of Analysis (COA) detailing these specifications is provided with every shipment to support your quality assurance and R&D processes.

Storage

Preserve in a tightly closed container, protected from light. This material is hygroscopic (moisture-sensitive). Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). Keep the container tightly sealed when not in use to prevent moisture absorption and caking.

Specification

Item	Specification
Appearance	White, free-flowing powder
Hydrophobic Character	Hydrophobic (forms film on water)
Loss on Drying	< 1.5 %
pH (in water suspension)	5.0 - 7.5
Carbon Content (by CHN analysis)	Contact for details
Specific Surface Area (BET)	Contact for details

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