MT-200 Cr is a series of polyurethane-based powder coatings designed for the exterior environment offering excellent corrosion resistance and flexibility properties. Exceptionally smooth flow and high gloss make MT-200 Cr powders ideal for applications where a high level of aesthetic finish is required. Please note that MT-200 Cr are not designed for architectural applications. To prevent oxidation of the basecoat, a clear coat must always be applied.
| 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 - 90µm |
| Shelf life | 24 months |
| Storage Conditions | Under dry, cool (≤ 30°C) conditions (open boxes must be resealed) |
| Curing schedule |
15-20 min at 190°C 10-15 min at 200°C |
Iron phosphate and particularly Zinc phosphating of ferrous metals improves corrosion resistance. Aluminium substrates may require a chromate conversion coating. Aluminium components should receive a full multi-stage chromate conversion coating or suitable chrome-free pre-treatment or suitable pre-anodising to clean and condition the substrate. Detailed advice should be sought from the pre-treatment supplier.
Bonded products have better application properties than blended products (more stable) but attention should still be paid to line settings in order to avoid “marble effect” and changes in aspect after recycling. Products with different codes should not be mixed even if same colour and gloss. Different substrates (aluminium, steel, galvanized steel…), use of primer, and big changes in film thickness may give a different aspect. It is recommended that for consistent application and appearance product be fluidized during application. Powders can be applied by manual or automatic electrostatic spray equipment.
The results are based on mechanical and chemical tests which (unless otherwise indicated) have been carried out under laboratory conditions and are given for guidance only Testing has been determined under laboratory conditions using the following application properties and is for guidance only. The test results are shown below based on a single layer application of MT-200 Cr without application of a clearcoat.
| Pre-treatment | Zinc Phosphate |
| Substrate | Polished stee |
| Curing schedule | 10 min at 200°C (object temperature) |
| Film Thickness | 70 - 90µm |
| 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 (2000g) |
| Impact resistance | ≥30 kg.cm | ISO 6272-2 (d) |
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).
Powder coatings offer thousands of colors in gloss, matte, satin, metallic, candy, texture, wrinkle, hammer tone, wood grain, fluorescent, and other custom effects. Special powders can create soft-touch, anti-scratch, anti-fingerprint, or anti-graffiti surfaces.
The process generally includes surface pretreatment (degreasing, phosphating, chromating, sandblasting), drying, electrostatic spraying, curing in an oven, and cooling. A well-controlled pretreatment and curing process ensures strong adhesion and long service life.
Powder coatings are environmentally friendly, solvent-free, and produce minimal waste. They offer excellent corrosion resistance, weather durability, mechanical strength, and uniform film appearance. The coating is tough, impact-resistant, scratch-resistant, and has a long lifespan.
Powder coatings are widely used in appliances, aluminum profiles, architectural components, automotive parts, bicycles, furniture, outdoor equipment, machinery, electrical cabinets, pipeline systems, and general industrial and consumer goods.
Powder coating is a dry finishing technology where finely ground powder is electrostatically sprayed onto a metal or non-metal surface and then cured at high temperature. After curing, the powder melts into a continuous, durable, and decorative coating layer.
Powder coating protects the substrate from corrosion, weathering, chemical attack, and mechanical wear. It also provides decorative appearance with rich colors, gloss levels, textures, and special effects.
In many industrial applications, powder coating outperforms liquid paint. It forms a thicker and tougher coating, resists corrosion and chemicals better, and does not contain VOCs. It also provides excellent consistency and cost-effective mass production.
It is called powder coating because the coating material is a solid powder instead of a liquid paint. The coating is formed by melting and curing powder particles under heat.
Powder coatings include several families depending on resin chemistry:
• Epoxy powders
• Polyester powders
• Epoxy-polyester hybrid powders
• Polyurethane powders
• Acrylic powders
• Fluorocarbon (PVDF) powders
Each type has its own performance features such as corrosion resistance, UV resistance, chemical resistance, outdoor durability, or decorative properties.
Powder coatings are based on thermoset or thermoplastic resins combined with pigments, curing agents, fillers, additives, and in some cases metallic or effect particles. Common substrates include steel, aluminum, galvanized metal, MDF, and certain heat-resistant plastics.
The lifespan depends on powder type, film thickness, application method, pretreatment, and service environment. Indoor coatings can last more than 10–20 years. High-grade outdoor polyester or fluorocarbon powders can last 15–25 years or longer under UV exposure.
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