MT-A1242 powder coating has an excellent line of coatings for coil springs, and torsion bars essential to the safe performance and comfortable ride of today's car and truck chassis systems. MT-A1242's single layer systems offer unyielding performance in corrosion and chip resistance balanced with excellent application efficiencies. Our patented Super Single Coat for coil springs offers superior corrosion protection and critical chip resistance to bring you the most economical and responsible choices in coatings for high performance, high tensile springs.
| Chemical Type | Epoxy |
| Area of usage | Automotive suspension springs |
| Appearance | Smooth |
| Gloss level (60°) | >40 GU |
| Colour | Black |
| Recommended Film Thickness | 330 – 380 µm (13 – 15 mils) |
| Density (g/cm3) | 1.41 ± 0.05 (calculated) 0.9 - 1.2 (measured, cured film) |
| Gel time (at 200 °C) | 36 - 54sec |
| Application | Electrostatic |
| Storage | Under dry, cool (<21°C) conditions |
| Shelf life | 10 months from the production date |
|
Curing schedule (at object temperature) |
25 minutes at 150°C (time at object temperature) 25 minutes at 300°F (time at object temperature) |
|
Adhesion |
DIN EN ISO 2409 | Gt 0 |
| Pencil Hardness | TSH1539G | B |
| Erichsen cupping | DIN EN ISO 1520 | ≥ 8 mm |
| Impact resistance | DIN EN ISO 6272 |
≥ 140 ip (direct) ≥ 140 ip (reverse) |
Testing has been determined under laboratory conditions using the following application properties and is for guidance only.
| Substrate | Steel panels CRS ACT B958 P90 |
| Pretreatment | Zinc Phosphate |
| Film thickness | 330 – 380 µ (13 – 15 mils) |
| Cure schedule | 20 minutes at 160°C |
Actual film performance will depend on the individiual circumstances in which the product is used.
Steel surfaces to be coated must be clean and free from grease. For maximum protection it is essential to pre-treat components prior to the application of MT-A1242. Iron Phosphate and Zinc Phosphate of ferrous metals improve corrosion resistance.
MT-A1242 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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