Polyurethane powder coating series
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Category：powder Coating Own Brand：MT /MOQ:100KG /From China/ B2B only.
Introduction
Made of hydroxy polyester resin and isocyanate curing agent as the main raw materials.
Features:
–Good adhesion, good mechanical properties
—Full and smooth coating, high hardness
—Excellent weather resistance
—Excellent chemical resistance
Application:
Suitable for decoration and protection of a variety of outdoor products: such as household appliances, architectural aluminum profiles, transportation facilities, garden facilities, etc.
Product series:
—Can be made into a variety of gloss and colorful colors, the specific gloss color is subject to user requirements
Application parameters:
Curing time: 200℃×10–15 minutes
Spraying method: High-voltage electrostatic spraying 60-80 KV
Recommended film thickness: 60-80 um
| Performance Category | Performance Parameter | Possible Specification | Test Method |
|---|---|---|---|
| Physical Properties | Pencil Hardness | 1H – 3H | ASTM D3363 |
| Impact Resistance | ≥50 kg·cm | GB/T 1732 | |
| Flexibility | ≤2mm | GB/T 6742 | |
| Adhesion | 0 – 2 grade | ISO 2409 | |
| Cupping Depth | ≥6 mm (or ≥7 mm in some cases) | GB/T 9753 | |
| Gloss Level | Adjustable (matte, semi-gloss, high-gloss) | – | |
| Particle Size Distribution | Average particle size: 34-45μm; <15μm: <7.5%; >85μm: <0.5% | – | |
| Chemical Properties | Salt Spray Resistance | ≥500 hours, ≥Grade 9 | GB/T 1771 |
| Humidity Resistance | ≥1000 hours, slight loss of gloss | GB/T 1740 | |
| Weather Resistance (QUV-B313) | ≥240h (some products may last longer) | GB/T 1865 | |
| Chemical Resistance (5% H₂SO₄) | 240 hours, no change | – | |
| Chemical Resistance (5% NaOH) | 168 hours, slight loss of light | – | |
| Environmental Compliance | RoHS Compliance | Free from arsenic, selenium, lead, hexavalent chromium, mercury, antimony, cadmium, and other heavy non-ferrous metals | RoHS Directive |
The above tests all use 0.8mm degreased and rusted cold-rolled steel plates, the coating thickness is 60-80um, and the performance indicators of the coating will vary slightly with the gloss.
This product does not contain arsenic, selenium, lead, hexavalent chromium, mercury, antimony, cadmium, and other heavy metals, and complies with RoHS requirements.
Storage conditions: Store in a dry, ventilated room at around 25°C, avoid direct sunlight. Under this condition, the powder can be stored for 6-12 months. If it exceeds the expiration date, it can be re-tested. If the results meet the requirements, it can still be used.
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