What Materials Can Be Powder Coated?
- Heat Resistance – The material must survive the curing oven without melting, warping, or degrading. Typical curing temperatures range from 160°C to 200°C (320°F to 400°F).
- Electrical Conductivity – The material must accept an electrostatic charge so the powder particles are attracted to the surface.
Material | Heat Resistance | Conductivity | Powder Coating Suitability |
Mild Steel | Excellent (melts >1400°C) | Excellent | ✅ Ideal |
Stainless Steel | Excellent | Excellent | ✅ Ideal |
Aluminum | Good (melts ~660°C) | Excellent | ✅ Excellent – requires proper pretreatment |
Galvanized Steel | Good | Excellent | ✅ Suitable – needs special primer |
Magnesium | Good | Good | ✅ Possible with care |
Brass / Copper | Good | Excellent | ✅ Suitable for decorative coatings |
Wood (MDF) | Poor (burns ~200°C) | Poor | ⚠️ Limited – requires conductive primer and low-temp powder |
Plastic | Poor (most melt below 150°C) | Poor | ❌ Not recommended – only high-temp plastics like polysulfone work, at high cost |
Key takeaway: If your product is made of metal, powder coating is almost always an option. For non-metals, consult a specialist Intech’s engineers can advise on feasibility.
Powder Coating Applications by Industry
- Automotive & Transportation
- Architectural & Construction
- Agricultural Equipment
- Industrial Machinery & Storage
- Furniture & Consumer Goods
- HVAC & Electrical
- Aerospace & Defense
What Cannot Be Powder Coated?
- Rubber and silicone parts – They degrade at curing temperatures.
- Thin plastics (ABS, polycarbonate, nylon) – They melt or distort.
- Parts with hidden cavities – Powder cannot reach recessed areas without special equipment.
- Assemblies with heat-sensitive components – Seals, bearings, or electronics inside the part will be damaged.
- Wood other than MDF – Natural wood releases moisture and cracks under heat.
Powder Coating vs. Liquid Painting: A Quick Comparison
Feature | Powder Coating | Liquid Painting |
Material utilization | Up to 98% reclaimable | 30–50% typically lost as overspray |
Curing method | Heat oven (160–200°C) | Air dry or low-temp bake |
VOC emissions | Zero | High (requires solvents) |
Durability | Excellent (chip, scratch, corrosion resistant) | Good to excellent depending on formulation |
Color change time | 15–30 minutes (with proper booth design) | 5–10 minutes |
Film thickness control | Very good | Excellent |
Suitable for heat-sensitive substrates | No | Yes |
How Intech Helps You Powder Coat the Right Items
- Pretreatment systems matched to your substrate
- Booths with 95%+ powder recovery
- Conveyorized or batch ovens with precise temperature control
- Automated application with reciprocators
- Pan-India installation and after-sales support