Polyester-Modified Silicone Resin
Silico® Polyester-Modified Silicone Resin blends silicone’s heat and weather resistance with polyester’s flexibility and adhesion. It delivers durable performance for high-temp coatings, electronics encapsulation, automotive finishes, and architectural protection.
Product Overview
Silico® Polyester-Modified Silicone Resin is an advanced hybrid organic-inorganic polymer synthesized by chemically grafting polyester chains onto a silicone resin backbone. This unique molecular architecture combines the exceptional heat resistance, weatherability, and chemical stability of silicone resins with the superior flexibility and adhesion properties of polyester polymers. Silico® provides an ideal solution for demanding applications in high-performance coatings, electronics encapsulation, automotive finishes, and architectural protection.
Typical Technical Specifications
| Parameter | Typical Range | Description |
|---|---|---|
| Appearance | Clear to pale yellow liquid | Facilitates quality inspection |
| Solid Content | 50% – 70% | Adjustable per formulation needs |
| Viscosity (25°C) | 100 – 3000 mPa·s | Suitable for various processing methods |
| Heat Resistance | 250°C – 300°C | Suitable for both short-term and continuous heat exposure |
| Glass Transition Temp (Tg) | 120°C – 160°C | Reflects thermal performance |
| Acid Value | ≤10 mg KOH/g | Indicates resin stability |
Key Features & Benefits
Outstanding Heat Resistance
Capable of withstanding continuous temperatures up to 250°C, with specialized grades tolerating up to 300°C, making it suitable for high-temperature industrial environments.Excellent Weatherability
Superior resistance to ultraviolet radiation and oxidative degradation ensures long-term durability and color retention in outdoor applications.Enhanced Mechanical Flexibility
Polyester modification imparts excellent film flexibility and impact resistance, reducing brittleness and cracking.Superior Substrate Adhesion
Exhibits strong adhesion to diverse substrates including metals, glass, and plastics, improving coating durability and lifespan.Chemical Resistance
Robust resistance against acids, alkalis, and solvents protects coated surfaces from harsh chemical exposures.Eco-Friendly Formulations
Compatible with low-VOC and solvent-free systems, meeting stringent environmental regulations globally.
Typical Applications
High-Temperature Resistant Coatings
Ideal for industrial machinery, engine compartments, and metal surfaces requiring durable heat-resistant finishes.Electronic Encapsulation
Provides excellent electrical insulation and thermal stability for protecting sensitive electronic components.Automotive Coatings
Enhances heat and weather resistance for automotive parts, ensuring long-lasting aesthetic and protective performance.Architectural Protective Coatings
Delivers superior weatherability and aesthetic appeal for exterior building surfaces and infrastructure.Adhesives and Composite Materials
Improves mechanical strength and heat resistance in advanced adhesive formulations and composite matrices.
Related Grades from Silico® (Examples)
- Silico® PXR-105 – Specifically developed for high-transparency optical coatings and UV-curable protective layers, offering outstanding yellowing resistance and long-term clarity.
- Silico® HTR-320 – Industrial-grade resin designed for high-temperature resistant coatings, ideal for continuous exposure to elevated thermal environments.
- Silico® CMP-450 – Customized polyester-modified resin formulated for pigment dispersion and hybrid ink systems, enhancing both dispersion stability and film-forming properties.
Custom formulations available upon request, including viscosity, solids content, and curing profiles tailored to your application needs.
Packaging & Storage
Packaging Options: 25 kg pails / 200 kg drums / IBC totes on request
Shelf Life: 12 months in sealed original packaging at ≤ 25 °C
Handling Note: Store in cool, ventilated areas. Avoid moisture ingress. Use with appropriate solvent systems (e.g., xylene, alcohols).
Jessica G.
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