Shin‑Etsu KBM‑403 Silane Coupling Agent 1 kg Epoxy-Functional Silane for Resin–Inorganic Adhesion

About Shin-Etsu KBM-403 Silane Coupling Agent

OVERVIEW:

Shin-Etsu KBM-403 is an organofunctional silane coupling agent designed to improve adhesion between organic materials and inorganic surfaces. It is commonly used to enhance bonding strength, durability, and chemical resistance in coatings, adhesives, sealants, and composite materials. KBM-403 contains an amino functional group, providing reactive sites for interaction with resins, while its silane structure forms durable bonds with substrates such as glass, metal, ceramics, and mineral fillers.

KEY FEATURES:

Adhesion Promotion
Improves bonding strength between organic polymers and inorganic substrates, contributing to enhanced mechanical properties and durability.

Moisture Resistance
Forms stable siloxane bonds that help resist hydrolysis and moisture-induced degradation at the interface.

Compatibility
Compatible with a wide range of resin systems, including epoxies, polyurethanes, acrylics, and phenolics.

Surface Modification
Can be used as a surface treatment agent to impart improved adhesion and water repellency to various materials.

Versatile Functionality
Applicable as a coupling agent, adhesion promoter, or additive in both solvent-based and water-based formulations.

APPLICATIONS:

• Coatings and Paints – Used to enhance adhesion to glass, metals, and mineral-filled surfaces, improving coating durability.

• Adhesives and Sealants – Improves bonding to inorganic substrates, supporting stronger and more reliable joints.

• Composite Materials – Promotes better bonding between resin matrices and fiber reinforcements or fillers.

• Glass and Ceramics Treatment – Applied as a primer or surface modifier to improve compatibility with organic coatings.

• Construction Materials – Used in formulations to enhance adhesion and moisture resistance in building products.

PACKAGING:

Shin-Etsu KBM-403 is typically supplied in sealed containers such as 1kg, 15kg, or 200kg drums, depending on region and distributor availability.

INSTRUCTIONS FOR USE:

• Surface Preparation: Clean substrate surfaces to remove contaminants such as oil, dust, and oxides.

• Application: Apply as a primer, surface treatment, or formulation additive, depending on process requirements. Dilution with suitable solvents may be required for certain applications.

• Curing: Allow treated surfaces to dry and cure as specified to achieve optimal adhesion performance.

SAFETY AND HANDLING:

Shin-Etsu KBM-403 should be used in a well-ventilated area. Avoid direct contact with skin and eyes. Use appropriate personal protective equipment such as gloves and goggles. Refer to the product’s Safety Data Sheet (SDS) for complete safety, handling, and disposal information.

DISCLAIMER:

The information provided is intended for general reference only. Actual performance and compatibility depend on materials, application methods, and specific process conditions. Users should consult the official technical datasheet and SDS to verify product suitability and ensure proper usage.