High-Temperature Silicone Resin For Zinc Rich Coatings | SIOResin® SIO-7213
SIO-7213 is a waterborne silicone resin emulsion meticulously engineered for high-temperature zinc rich anti-corrosion coatings. With the ability to withstand extreme thermal conditions ranging from 200°C to an impressive 650°C, this advanced binder opens up possibilities for durable and high-performance protective coatings. Its self-crosslinking mechanism at room temperature ensures hassle-free application, making it an environmentally friendly alternative that aligns with modern sustainability standards.
What sets SIO-7213 apart is its unparalleled resistance to corrosion. Coatings formulated with this resin deliver neutral salt spray resistance that surpasses traditional inorganic zinc-rich primers by over threefold. This remarkable improvement ensures extended longevity and enhanced protection for metal substrates exposed to harsh conditions. Whether safeguarding industrial pipelines, high-temperature equipment, or structural components, SIO-7213 provides a robust and reliable solution, redefining performance standards in high-temperature corrosion-resistant coatings.
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Product Features
- Water-dilutable: Low odor, free from toluene and xylene, compliant with environmental regulations.
- Excellent stability: High-speed dispersibility, resistant to acids, alkalis, heat, and centrifugation, with strong dilution stability.
- Superior film-forming properties: Rapid surface drying at room temperature with excellent wetting and leveling performance.
- Versatile compatibility: Can be combined with spherical zinc powder, flake zinc powder, or zinc-aluminum alloy powder to produce high-temperature zinc-rich anti-corrosion coatings.
- Self-drying: Achieves surface hardness within 24 hours at room temperature.
- Thick application: Resistant to chalking or peeling under high temperatures.
Application Areas
- Used with spherical zinc powder, flake zinc powder, or zinc-aluminum alloy powder to produce high-temperature zinc-rich anti-corrosion coatings.
- Suitable for industries with stringent corrosion resistance and high-temperature demands.
Typical Physical Data
Curing Conditions
Self-drying at room temperature, achieving hardness within 24 hours
Usage Recommendations
1. Mixing Proportions: Weigh SIO-7213 and zinc powder in a 2:1 ratio by weight. Gradually add zinc powder to SIO-7213 while stirring continuously. After all zinc powder is added, continue stirring for approximately 10 minutes. Filter the prepared coating using a 120-mesh nylon screen and apply directly to pre-treated metal surfaces.
2. Surface Preparation: All surfaces to be coated must be clean, dry, and free of contaminants. Surface treatment and assessment should comply with international standard ISO8504.
3. Coating Thickness: Recommended single-layer application dry film thickness is 10-20μm. For thicker coatings, apply two layers with a total thickness of 30μm.
4. Environmental Conditions: Relative humidity should not exceed 85%, and the substrate temperature should be at least 3°C above the dew point. Measurements should be taken near the worksite.
Formulation Highlights
1. High-temperature Resistance: Long-term resistance to 200-650°C, with short-term resistance up to 800°C.
2. Outstanding Salt Spray Resistance: A 15μm coating can withstand 1500-2000 hours of neutral salt spray.
3. Room-Temperature Drying: Eliminates the need for baking, allowing fast and easy application.
4. Simple On-site Operation: Two components mix and disperse quickly, forming a coating with strong adhesion.
5. Excellent Interlayer Adhesion: Performs well as a primer when combined with other coatings.
Packaging and Transportation
50kg plastic drum. Store in a ventilated, cool place above 0°C and below 40°C. Handle as non-hazardous goods for transportation.
Shelf Life
Store in a sealed container for up to 6 months. Each product label specifies a "Best Before" date. Storing beyond this date does not guarantee usability; additional testing is recommended to ensure quality.
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