High-temperature resistant powder coatings
WA：+86 132 6275 2056
WEB: std-coatings.com
Introduction
STD high-temperature resistant powder series products are safe and environmentally friendly, harmless and pollution-free to the environment, and comply with the RoHS directive; they are high-temperature resistant, have excellent performance and high cost performance; they have strong adhesion to the substrate and good recoatability.
| Item | Condition | Result/Requirement |
|---|---|---|
| High Temperature Resistance | 300℃ | Muffle furnace at 300℃ for 1 hour |
| 450℃ | Muffle furnace at 450℃ for 1 hour | |
| 600℃ | Muffle furnace at 600℃ for 1 hour | |
| Adhesion (Cross-Cut Test) | GB/T9286 | Grade 1 |
| Pencil Hardness | GB/T6739 | ≥2H |
| Salt Spray Resistance (96h) | GB/T1771 | ≤Grade 1 |
| Re-coating Test | Adhesion Grade 1 | - |
| Curing Condition (Workpiece Temperature) | 220-235℃/20 minutes | - |
Application
1. STD 600℃ Series: Pellet stoves, fireplaces, charcoal stoves, and fire pits, etc. (combustible materials are usually wood, pellets, and charcoal);
2. STD 450℃ Series: Gas stoves and ovens (mainly burning coal gas or natural gas);Tableware and household appliances (baking trays, cake pans, heating plates, and ovens, etc.);
3. STD 200-700℃ Series: Motorcycle exhaust pipes, high-power lamp housings, and high-temperature mechanical parts (for general industrial applications).
Features
| Item | Specification |
|---|---|
| Chemical Type | Organic Silicone |
| Appearance | Flat, textured, wrinkled, and other artistic patterns |
| Curing Condition (Workpiece Temperature) | 230℃ / 20min; improper curing may cause loss of color, gloss, and coating performance |
| Gloss | Depends on specific product |
| Storage Condition | Sealed and stored in a dry, cool place below 30℃ |
| Shelf Life | 6 months (<30℃), 12 months (<25℃) |
| Packaging Specification | 25kg/carton |
Technical indicators
Note: Substrate and pretreatment: Mechanical property testing used 0.6mm thick degreased cold-rolled steel sheet; corrosion aging resistance testing used 0.6mm thick zinc-based phosphated steel sheet or chromated aluminum sheet.
• Film thickness: 40-60μm
• Curing conditions: 230℃/20min (workpiece temperature)
| Item | Index | Test Standard |
|---|---|---|
| Bending | Passed, curvature diameter 6mm | ASTM D522 |
| Passed, curvature diameter 4mm | GB/T 1731 | |
| Dry Adhesion | Passed, result 5B | ASTM D3359 |
| Passed, result Grade 0 | ISO 2409 | |
| Cupping Test | Passed, 6mm, no cracking/peeling | ISO1520 |
| Passed, 6mm, no cracking/peeling | GB/T 9753 | |
| Impact Resistance (Direct Impact) | ≥50kg·cm | ASTM D2794 |
| ≥50kg·cm | GB/T 1732 | |
| Pencil Hardness | ≥H | ASTM D3363 |
| ≥H | GB/T 6739 | |
| Chemical Resistance | Good (tested with general acids, alkalis, oils at room temperature) | / |
| Water Mist Resistance | None | ASTM D1735 |
| Water Immersion Resistance | Passed, 24h, no blistering or loss of gloss | ASTM D870 |
| Neutral Salt Spray | Passed, 500h, no blistering or peeling | ISO 9227 |
Construction Reference
Manual or automatic spraying equipment can be used, ensuring a clean air source.
Atomizing air pressure: ~0.7 bar
Primary air pressure: ~0.7 bar
Recommended voltage: 40~90kV
Safety warning: When using spraying equipment, ensure proper ventilation and dust collection systems are functioning correctly. Workers must take appropriate protective measures and wear suitable protective equipment. For more detailed information, please refer to the safety information sheet for the corresponding product.
Types of powder coating
Powder coatings can be categorized by resin system (epoxy, polyester, hybrid, polyurethane), appearance (smooth, texture, hammer, metallic, pearlescent), or performance level (anti-corrosion, heat-resistant, UV-resistant, architectural grade, automotive grade).
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