When the Flexibility of Silicone Perfectly Meets the Strength of Resin

In the coatings and resins industry, the challenge of simultaneously achieving exceptional wear resistance, silky-smooth hand feel, and robust anti-fouling and anti-adhesion properties has long been a puzzle for formulators. With its unique mono-terminated dual-hydroxyl structure and high reactivity with isocyanates and carboxyl groups, IOTA 8866 offers a new chemical platform for synthesizing high-performance silicone-modified resins. This is not merely an additive but a key building block for you to construct the next generation of functional coatings.

Core Product Value: Reactive Silicone Pre-polymer

• Precise Reactive Design
  The mono-terminated dual-hydroxyl structure, with an average molecular weight of 4250, enables it to react efficiently with functional groups such as -NCO and -COOH, much like polyols. This allows silicone segments to be chemically bonded into the resin backbone, rather than simply physically blended.

• Comprehensive Enhancement of Coating Performance

  • Exceptional Wear Resistance: Significantly improves scratch resistance and durability of coatings.

  • Silky-Smooth Hand Feel: Imparts a delicate, smooth tactile sensation to surfaces.

  • Anti-Adhesion and Anti-Fouling: Effectively resists stain adhesion for easy cleaning.

  • Anti-Graffiti Performance: Resists everyday writing and marker stains.

• Excellent Processing Compatibility
  Low surface tension promotes coating leveling and flow, with good compatibility across various resin systems, including PU, polyester, and acrylic.

Clear and Reliable Technical Parameters

Three Major Application Scenarios, Empowering High-End Coatings

1. Silicone-Modified Polyurethane Resins and Emulsions

• Reacts with isocyanates such as MDI, TDI, and IPDI to synthesize -NCO-terminated silicone pre-polymers.

• Further extends chains with polyols to produce high-performance silicone PU resins.

• Suitable for leather finishes, textile coatings, and high-performance elastomers.

2. Modification of Polyester, Polyurethane, and Polyurethane-Acrylic Resins

• Directly participates in condensation or addition polymerization, embedding silicone characteristics into the resin backbone.

• Significantly enhances the flexibility, surface smoothness, and stain resistance of resins.

3. Two-Component PU Baking Paint and Amino Baking Paint

• Incorporated as a functional resin component into the main resin system.

• Participates in the curing reaction, imparting durable functional properties to coatings.

• Suitable for industrial coatings, plastic paints, metal baking paints, and more.

Scientific Usage Guidelines

For Synthesizing Silicone PU Resins and Emulsions

• Method 1: First react with isocyanate at 85°C (for MDI/TDI) or 90°C (for IPDI) to generate -NCO-terminated pre-polymers, then add polyols for chain extension.

• Method 2: Add simultaneously with polyols into the reaction system for direct copolymerization.

For Resin Modification

• Add during the resin synthesis process to participate in copolymerization. Recommended dosage: 5%–20% of the total resin.

For Two-Component Coatings

• Directly add to the main resin component, mix thoroughly, and then combine with the curing agent.

Packaging, Storage, and Quality Commitment

• Packaging Specifications: 25 kg plastic drums / 200 kg iron drums

• Storage Conditions: Ventilated, dry environment; avoid moisture and high temperatures

• Transport Classification: Non-hazardous; transported as general chemicals

• Shelf Life: 1 year (in original sealed containers)

• Brand Assurance: IOTA – Your Reliable Partner in Silicone Chemistry