MT-D34 is a series of durable powder coatings specially formulated for the use on architectural aluminum which conforms to the performance requirements of GB5237.4 specification. MT- D34 is designed to offer significantly high gloss retention and resistance to color change combined with maximum film integrity to ensure long term cosmetic and functional protection. MT-D34 powder coatings are available in a selected range of colors including pearlescent effects in gloss, satin and matte finishes. Fine and coarse textured are also available.
| Chemical Type | Polyester |
| Appearance | Smooth |
| Particle Size | Suitable for electrostatic spray |
| Specific Gravity | 1.3 - 1.7 g/cm³ |
| Gloss | 45 – 55% (depending on color) |
| Storage | Dry, cool conditions (open boxes must be resealed) |
| Shelf Life | 12 months below 25°C peak temperature 6 months below 30°C peak temperature |
|
Stoving Conditions (at object temperature) |
10 minutes at 200°C Failure to observe the curing conditions may cause differences in color, gloss, and/or the deterioration of the coating properties. |
|
Adhesion |
GB/T 9286 | Pass Gt0 |
| Erichsen cupping | GB/T 9753 | Pass, 5 mm no crack or detachment of film |
| Impact resistance | GB/T 20624.2 | Pass, 50 InP Reverse, deformation no crack |
| Bend Test | GB/T 6742 | Pass, 3 mm no crack |
For maximum protection it is essential to pretreat components prior to the application of MT- D34. Aluminium components should receive the following pre-treatment in accordance of supplier's recommendation.
Aluminum - Multi-stage chrome chromate or chrome phosphate Galvanised.
Steel - Multi-stage zinc phosphate or chromate.
Steel - Multi-stage zinc or iron phosphate.
MT-D34 powders can be applied by manual or automatic electrostatic spray equipment. It is recommended that for consistent application and appearance product be fluidized during application. Unused powder can be reclaimed using suitable equipment and recycled through the coating system.
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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