Description

Trimethoxysilylpropyl Modified Polyethylenimine, 50% In Isopropanol is a specialized organosilane-modified polymer that combines the adhesion-promoting properties of a silane with the cationic functionality of polyethylenimine. This unique hybrid structure is critical for enhancing the bonding, durability, and surface compatibility of materials in demanding industrial applications. It is an essential component for formulators and manufacturers in the coatings, adhesives, and advanced materials sectors seeking to improve performance on challenging substrates.

Application

• Adhesion Promoter for Coatings: Significantly improves the adhesion of paints, inks, and primers to glass, metals, and mineral surfaces.
• Surface Modifier for Fillers and Pigments: Used to treat silica, glass fibers, and other fillers to enhance dispersion and compatibility in polymer matrices.
• Crosslinking Agent: Functions as a co-reactant in moisture-curable sealants, adhesives, and resin systems.
• Corrosion Inhibiting Additive: Incorporated into protective coatings to improve barrier properties and substrate wetting.
• Coupling Agent for Composites: Enhances the interfacial bond between organic polymers and inorganic reinforcements in composite materials.
• Primer Formulation: A key ingredient in surface primers designed for non-porous or low-surface-energy substrates.

Basic Information

Product Name	Trimethoxysilylpropyl Modified Polyethylenimine, 50% In Isopropanol
CAS No.	136856-91-2
Molecular Formula	Contact for details
Molecular Weight	Contact for details
Synonyms	Polyethylenimine, (3-trimethoxysilylpropyl)-modified; (3-Trimethoxysilylpropyl) Modified Polyethylenimine; PEI-Silane; Silane-modified Polyethylenimine; Amino Silane Polymer; Adhesion Promoter 136856-91-2; Organosilane Polyethylenimine Copolymer
EINECS	Contact for details

Quality Control

Our Trimethoxysilylpropyl Modified Polyethylenimine is manufactured under a strict quality management system. Every batch is analyzed to ensure consistent performance, including tests for active content, viscosity, and solvent composition. A Certificate of Analysis (COA) documenting these specifications is provided with each shipment to guarantee compliance with your formulation requirements.

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 product is highly volatile and hygroscopic (moisture-sensitive). Keep away from heat, sparks, and open flame. Keep container tightly sealed when not in use to prevent moisture absorption and solvent evaporation.

Specification

Item	Specification
Appearance	Clear to slightly hazy liquid
Active Content	~50% in Isopropanol
Color	Colorless to pale yellow
Specific Gravity (25°C)	Contact for details
Viscosity (25°C)	Contact for details
Assay (Silane Content)	Contact for details

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