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Amino-Modified Silicone Resin

Amino-Modified Silicone Resin

Silico® Amino-Modified Silicone Resin features reactive amino groups for strong adhesion to metal, glass, ceramics, and plastics. It retains silicone’s heat resistance and durability, making it ideal for industrial coatings, primers, adhesives, and sealants.

Product Overview

Silico® Amino-Modified Silicone Resin is a high-performance organosilicon polymer functionalized with primary or secondary amino groups. These reactive groups significantly enhance adhesion to metal, glass, ceramics, and plastic substrates, while maintaining the inherent thermal stability, weather resistance, and hydrophobicity of silicone. This resin is engineered for demanding applications in industrial coatings, adhesives, primers, and sealants, where strong interfacial bonding and chemical durability are essential.

Typical Technical Specifications

Property Value / Range
Appearance Colorless to light yellow liquid
Form 100% active resin or solvent dispersion
Viscosity (25 °C) 800–2500 mPa·s
Amine Content 0.5–1.2 wt% (customizable)
Functionality Primary / secondary amino groups
Compatibility Epoxy, PU, Acrylic, Silane, Solvent systems
Recommended Dosage 2–10 wt% (varies by formulation)

Key Features & Benefits

  • Enhanced Substrate Adhesion
    Amino functional groups chemically anchor to diverse surfaces, improving wetting and long-term bond durability in primer and topcoat systems.

  • Hybrid Compatibility
    Easily co-reacts with epoxy, acrylic, polyurethane, and silane systems, enabling use in hybrid and moisture-cure technologies.

  • High Thermal & Weather Resistance
    The siloxane backbone ensures excellent resistance to UV radiation, high temperatures (up to 250 °C), and moisture, extending service life.

  • Improved Flexibility & Crack Resistance
    Reduces brittleness and improves flexibility in coating films, enhancing resistance to stress cracking and environmental degradation.

  • Low VOC & Solvent-Free Options
    Available in eco-compliant grades, suitable for low-VOC, HAP-free, and green chemistry formulations.

Typical Applications

  • Metal Primers & Adhesion Promoters
    Ensures strong bonding to aluminum, steel, copper, and galvanized metals—ideal for corrosion-resistant primers and metal pre-treatments.

  • Hybrid Coatings & Adhesives
    Enhances crosslink density and mechanical performance in moisture-cure polyurethane and silane-modified systems.

  • Sealants & Gaskets
    Improves adhesion and flexibility in 1K and 2K sealants used in construction, electronics, and automotive applications.

  • Surface Treatments & Textile Finishes
    Functions as a softening, anti-static, and adhesion-enhancing additive in textile auxiliaries and plastic surface treatments.

Related Grades from Silico® (Examples)

Grade Viscosity Solvent Type Key Features / Similar To
Silico® AMR-NH100 Low Toluene / IPA For primer systems (similar to DOWSIL™ 3055)
Silico® AMR-NH200 Medium (1000 mPa·s) Solvent-free Universal grade for coatings and adhesives
Silico® AMR-NH300 High solids PDMS / Xylene High adhesion, high Tg, enhanced flexibility

Packaging & Storage

  • Available Packaging: 25 kg pails, 200 kg drums, IBC totes

  • Shelf Life: 12 months (unopened, <25 °C)

  • Storage Conditions: Cool, dry, well-ventilated area, away from moisture and sunlight

Why Choose Silico® Amino-Modified Silicone Resins?

  • Superior adhesion for difficult substrates

  • Excellent compatibility with multiple resin systems

  • Heat and UV resistance for long-lasting durability

  • Low-VOC and solvent-free options

  • Backed by expert technical support and customization services

Get in touch to Get

  • Quick and helpful reply within 8 hours;
  • Tailored solutions provided for your project;
  • One-stop purchasing service.
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