Automotive parts powder coatings MT-A300 Series
We are a manufacturer based in China, specializing in high-quality Automotive parts powder coatings MT-A300 Series for industrial clients worldwide. Technical support and custom formulation available.
Category:powder Coating | Brand:MT
Introduction
MT-A300 Series Automotive Parts Powder Coatings are weather-resistant pure polyester powder coatings developed for automotive components such as windshield wiper arms, luggage racks, bumpers, and other exterior parts. They provide good adhesion, mechanical properties, UV resistance, and outdoor durability.

Features
Good Adhesion
Designed to provide reliable adhesion to properly pretreated metal substrates.
Mechanical Performance
Offers good mechanical properties for coated automotive components.
Outdoor Durability
Provides UV resistance and weather durability for exterior applications.
Applications
Automotive windshield wiper arms
Automotive luggage racks
Automotive bumpers
Other automotive parts
Application Parameters
| Parameter | Recommended Setting |
|---|---|
| Curing Conditions | 180–200°C for 10–15 minutes |
| Application Method | High-voltage electrostatic spraying |
| Spraying Voltage | 60–80 kV |
| Recommended Film Thickness | 60–150 μm |
Curing time and temperature should be adjusted according to the workpiece, coating thickness, and actual production conditions. Confirm the required curing conditions through testing.
Physical and Chemical Performance
| Test Item | Test Instrument / Method | Reported Result | Test Standards |
|---|---|---|---|
| Pencil Hardness | Pencil hardness tester | M 1H (as reported) | GB/T 6739; ASTM D3363 |
| Impact Resistance | Impact tester | 50 kg·cm (8 mm diameter); 2.5 N·m (16 mm diameter); result for 20 mm diameter not specified | GB/T 1732; ASTM D2794; ISO 6272 |
| Bending Resistance | Bending tester | Reported: 2 mm cylindrical mandrel; conical and cylindrical mandrel results not specified | GB/T 6742; ASTM D1737; ISO 1519 |
| Adhesion | Cross-cut test | Grade 0 | GB/T 9286; ISO 2409; ASTM D3359 |
| Cupping Resistance | Cupping tester | 6 mm (as reported) | GB/T 9753; ISO 1520 |
| Salt Spray Resistance | Neutral salt spray (NSS) | 500 h; reported notation “WbW2mm” requires confirmation | GB/T 1771; ASTM B117; ISO 7253 |
| Damp Heat Resistance | Temperature and humidity chamber | 1,000 h; slight gloss loss permitted (as reported) | GB/T 1740; ISO 6270 |
| Weather Resistance | Accelerated weathering chamber | QUV-B313, 500 h; Grade 3 (as reported) | GB/T 1865; ISO 11341 |
Test Conditions
The reported tests were conducted using 0.8 mm cold-rolled steel panels after degreasing and rust removal, with a coating thickness of 60–80 μm. Coating performance may vary slightly with gloss level and test conditions.
Environmental Compliance
The original product information states that the coating does not contain certain listed heavy metals and complies with RoHS 2.0 requirements. Please refer to the applicable product declaration or test report for confirmation of the substance restrictions and compliance status.
Technical Support and Disclaimer
We provide powder coating consultation and application customization based on customer requirements. The test results listed above are laboratory reference data and do not constitute a performance guarantee for every application. Actual results may vary depending on substrate preparation, coating thickness, curing conditions, environment, and other application factors.

Looking for powder coatings for automotive parts? Contact our team for product details, color options, samples, and application recommendations tailored to your requirements.
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