IOTA 2176 is a polydimethylsiloxane-polyether copolymer with a hydroxymethyl terminal functional group, with a molecular weight of approximately 3200. Its terminal hydroxymethyl group can undergo crosslinking reactions with isocyanate groups in polyurethane systems, chemically anchoring silicone segments into the resin network, thereby imparting durable weather resistance, anti-staining properties, and excellent feel to polyurethane materials.

Technical Specifications

Recommended Dosage

Key Features (Polyurethane Focus)

• Chemical Bonding Modification: Hydroxymethyl reacts with isocyanate to permanently introduce silicone segments into the polyurethane network, preventing migration and exudation.

• Enhanced Weather Resistance: Silicone segments resist UV, oxidation, and湿热 aging, extending coating service life.

• Improved Anti-Staining Properties: Lowers surface energy, reducing dust and oil adhesion, making coatings easy to clean.

• Feel Optimization: Imparts a silky, soft touch to polyurethane surfaces, enhancing product quality.

• Improved Low-Temperature Performance: Silicone segments enhance the flexibility of polyurethane in low-temperature environments.

Typical Applications

• Polyurethane Coatings: Automotive paints, industrial anti-corrosion coatings, wood coatings, leather finishes

• Polyurethane Adhesives: Structural adhesives, packaging adhesives, shoe adhesives

• Polyurethane Elastomers: Seals, rollers, hoses, and other product modifications

Why Choose IOTA 2176

IOTA 2176 permanently integrates silicone performance into polyurethane systems through chemical reaction. Compared to physically added additives, it offers longer-lasting modification effects and more stable performance. It is an ideal choice for enhancing the comprehensive performance of polyurethane coatings and adhesives.

For samples, technical support, or formulation recommendations, please contact us to create lasting high performance for your polyurethane systems.