中文简体
EnglishHigh Temperature Resistant Powder Coating
Industrial-grade protective coating solutions: environmentally friendly, durable, and cost-effective.
Intro to High Temperature Resistant Powder Coating
High Temperature Resistant Powder Coatings are highly specialized thermoset finishes formulated to withstand continuous or intermittent exposure to temperatures exceeding 200∘C (up to 550∘C) without suffering thermal degradation, color shift, blistering, or delamination. Unlike conventional powders, which rapidly fail above 150∘C, these coatings rely on inorganic hybrid resins, Silicone-based polymers, or high-performance PFA/FEP to maintain film integrity and performance under extreme thermal stress.
Thermal Stability and Color Retention
The main challenge at high temperatures is the thermal oxidation and decomposition of organic polymer chains, which causes chalking, color fading (yellowing), and loss of adhesion. High-temperature coatings mitigate this by using polymer backbones that contain inorganic elements (Silicone) known for their high thermal stability. Silicone-modified polyesters can handle 200∘C to 260∘C continuously. For temperatures exceeding 300∘C (e.g., exhaust systems), specialized Silicone-ceramic hybrids or pure inorganic systems are required. These coatings are essential for engine parts, heating equipment, and industrial processing components where thermal insulation or continuous operation at high heat is necessary. Pigment selection is also critical, utilizing high-purity, heat-stable inorganic colorants to minimize color burnout and fading.
Specifications
| Property | High Temperature Resistant Value |
| Chemical Base (Typical) | Silicone-Modified Polyester/Epoxy or Pure Silicone/Ceramic |
| Continuous Service Temp. | 200∘C to 550∘C (Grade dependent) |
| Thermal Stability Test | Must pass hours at max temperature without ΔE or gloss shift |
| Color Retention | Excellent (Uses high-purity heat-stable pigments) |
| Corrosion Protection | Good (Maintained at high temperature) |
| Film Integrity | Maintained (No blistering, cracking, or delamination) |
| Curing Requirement | Often requires a stepped or dual-stage cure cycle |
| Application Focus | Engine Parts, Heat Exchange Equipment |
Application Fields
- Automotive Exhaust Systems: Mufflers, headers, and exhaust pipes (up to 500∘C).
- Heating Appliances: Fireplace inserts, wood stoves, and commercial heating units.
- Engine Components: Valve covers, manifolds, and parts near heat sources.
- Industrial Process Equipment: Ovens, kilns, and heat exchange piping.
- Lighting Fixtures: High-wattage light housings where heat build-up is severe.
Key Characteristicss
- Extreme Thermal Stability: Withstands continuous high-temperature exposure without failing.
- Excellent Color Fidelity: Minimizes thermal yellowing, fading, or color burnout.
- Film Integrity at Heat: Resists blistering, cracking, and loss of adhesion under thermal cycling.
- Corrosion Defense: Provides necessary protection even when the metal is fully heat-soaked.
- Grade Versatility: Available in different silicone/ceramic concentrations for varying temperature ceilings.
Comparison: High Temp vs. Standard Polyester
| Feature | High Temperature Resistant Powder | Standard Powder Coating |
| Max Continuous Temp. | ≥200∘C (Often much higher) | ≤150∘C |
| Thermal Failure | Excellent Resistance | Rapid Yellowing, Chalking, and Failure |
| Polymer Base | Silicone, Inorganic, or Specialty PFA/FEP | Standard Polyester/Epoxy |
| Cost | Highest (Specialty raw materials) | Standard |
| Color Range | Limited (Uses high-temp pigments) | Unlimited |
Why choose us
Customization: We have a strong R&D team,and we can develop and produce products according to different requirement of customers.
Cost: We have our own raw material production center.So we can offer the most favourable price and good-quality products directly.
Quality: We have our own testing lab and the most advanced and complete inspection equipment, which can ensure the quality of our products.
Capacity: Our annual production capacity is over 30000 tons, we can meet the needs of different customers with diverse purchase quantity.
Service: We focus on developing high-quality products for top-end markets. Our products are in line with international standards, and are mainly exported to Europe, America, Southeast Asia, South America and other destinations around the world.
Shipment: We are only 200 kilometers away from the Shanghai Port and 230 kilometers to Ningbo port, it is very convenient and efficient to ship goods to any other countries.
Customization
Quality
Capacity
Service
Shipment
Frequently Asked Questions (FAQs)
- Q: Can I use a standard powder coating on a part that only gets briefly hot (e.g., 250∘C for 1 minute)?
- A: It is risky. While the part may not fail, the coating will likely suffer thermal shock, yellowing, and a rapid degradation of long-term mechanical properties. High-temp coatings are recommended for any exposure over 180∘C.
- Q: Does the surface need special preparation before applying high-temp powder?
- A: Yes. High-temp coatings (especially those >300∘C) often require abrasive blasting to achieve a clean metal surface and proper anchor profile to ensure mechanical adhesion during thermal cycling.
- Q: Are high-temp coatings UV stable for outdoor exhaust systems?
- A: Yes, many silicone-based high-temp coatings designed for exterior use are formulated to resist both thermal breakdown and UV degradation, making them suitable for exposed exhaust tips and piping.
Selection Guide: High Temperature Resistant
Select High Temperature Resistant Powder Coating when:
- The component is subjected to continuous operating temperatures exceeding 200∘C.
- Color stability and film integrity must be maintained under severe thermal stress.
- The application is an exhaust system, engine component, or industrial heater.
- The coating must provide corrosion protection that remains effective at elevated temperatures.
- The specific temperature ceiling (e.g., 250∘C,400∘C) determines the required Silicone or Ceramic content.
