Chrome-silver-effect polyurethane powder coatings MT-200 Cr
We are a manufacturer based in China, specializing in high-quality Chrome-silver-effect polyurethane powder coatings MT-200 Cr for industrial clients worldwide. Technical support and custom formulation available.
Category：Colors & Finish, powder Coating | Brand：MT
Introduction
Product Description
MT-200 Cr is a series of polyurethane-based powder coatings designed for exterior environments, offering corrosion resistance and flexibility. Its smooth flow and high-gloss finish make it suitable for applications requiring a refined decorative appearance.
Important: MT-200 Cr is not designed for architectural applications. A clear coat must always be applied to help prevent oxidation of the basecoat.
Powder Properties
| Property | Typical Value |
|---|---|
| Chemical Type | Polyurethane |
| Appearance | Smooth Gloss |
| Color | Chrome Silver |
| Density | 1.2–1.9 g/cm³ |
| Finish Effect | Bonded |
| Recommended Film Thickness | 70–90 µm |
| Shelf Life | 24 months |
| Storage Conditions | Store in a dry, cool environment at ≤30°C. Reseal opened boxes. |
| Curing Schedule | 15–20 min at 190°C 10–15 min at 200°C |
Pre-treatment
Iron phosphate and, particularly, zinc phosphating can improve the corrosion resistance of ferrous metals. Aluminium substrates may require a chromate conversion coating, a suitable chrome-free pre-treatment, or pre-anodising to clean and condition the substrate.
For aluminium components, select a suitable pre-treatment process according to the substrate and application requirements. Consult the pre-treatment supplier for detailed recommendations.
Application
Bonded products generally offer more stable application properties than blended products. However, line settings should be carefully controlled to avoid a marble effect or changes in appearance when powder is recycled.
- Do not mix products with different codes, even if they have the same color and gloss.
- Different substrates, including aluminium, steel, and galvanized steel, may produce different surface appearances.
- The use of a primer and significant changes in film thickness may also affect the final appearance.
- Fluidize the powder during application to help maintain consistent application properties and appearance.
- The powder can be applied using manual or automatic electrostatic spray equipment.
Test Conditions
The results are based on mechanical and chemical tests conducted under laboratory conditions and are provided for guidance only. Unless otherwise indicated, testing was performed using the application conditions below. The results represent a single layer of MT-200 Cr without a clear coat.
| Test Parameter | Condition |
|---|---|
| Pre-treatment | Zinc Phosphate |
| Substrate | Polished steel |
| Curing Schedule | 10 min at 200°C (object temperature) |
| Film Thickness | 70–90 µm |
Mechanical Tests
| Test | Typical Value | Method / Standard |
|---|---|---|
| Adhesion | Class 0 | ISO 2409 (2 mm crosshatch) |
| Erichsen Cupping | Pass 5 mm | ISO 1520 |
| Flexibility | Pass 5 mm | ISO 1519 |
| Hardness | Pass — no penetration to substrate | ISO 1518-1 (2000 g) |
| Impact Resistance | ≥30 kg·cm | ISO 6272-2 (d) |
Contact our team for technical details, product suitability advice, and a quotation for MT-200 Cr chrome-silver-effect polyurethane powder coatings.
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