Description

Silane, Triethoxyphenyl-, Hydrolyzed is a specialized organosilicon compound that serves as a high-performance coupling agent and surface modifier. Its unique structure, featuring a hydrolyzed silane group attached to a phenyl ring, provides excellent adhesion promotion between organic polymers and inorganic substrates. This product is essential for manufacturers in the coatings, adhesives, and composites industries seeking to enhance material durability, chemical resistance, and interfacial bonding strength.

Application

• Adhesion Promoter in epoxy, polyurethane, and acrylic-based coatings and sealants for metals, glass, and concrete.
• Surface Modification agent for silica, glass fibers, and other mineral fillers to improve dispersion and compatibility in polymer composites.
• Primer Component for enhancing the bond strength and moisture resistance of structural adhesives and laminates.
• Crosslinking Agent in silicone resin formulations to improve thermal stability and mechanical properties.
• Water Repellent treatment for construction materials, providing hydrophobic surfaces on stone, brick, and concrete.
• Coupling Agent in mineral-filled rubber and plastic compounds to increase tensile strength and reduce water absorption.

Basic Information

Product Name	Silane, Triethoxyphenyl-, Hydrolyzed
CAS No.	72480-33-2
Molecular Formula	C12H20O4Si
Molecular Weight	256.37 g/mol
Synonyms	Hydrolyzed Phenyltriethoxysilane; Phenyltrihydroxysilane (partial hydrolysis product); Triethoxyphenylsilane hydrolyzate; Silane coupling agent SC-A 103; Phenyltriethoxysilane oligomer; 3-(Triethoxysilyl)benzene hydrolyzed; Phenylsilanetriol triethyl ether hydrolyzed
EINECS	Contact for details

Quality Control

Our Silane, Triethoxyphenyl-, Hydrolyzed is produced under a strict quality management system. Each batch is analyzed to ensure consistent performance as a coupling agent, with key parameters including active content, viscosity, and refractive index monitored. A Certificate of Analysis (COA) documenting purity and physical properties is provided with every shipment to guarantee it meets your formulation requirements.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C). This material is hygroscopic (moisture-sensitive). Keep container tightly sealed when not in use to minimize exposure to atmospheric moisture, which can lead to further condensation or gelation.

Specification

Item	Specification
Appearance	Clear to slightly hazy liquid
Color	Colorless to pale yellow
Active Content (Silanol)	≥ 95%
Refractive Index (n20D)	1.460 - 1.480
Viscosity (25°C)	10 - 50 mPa·s
Density (25°C)	1.00 - 1.10 g/mL
Solubility	Soluble in common alcohols, partially soluble in water

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