Insulating Powder Coating
We are a manufacturer based in China, specializing in high-quality Insulating Powder Coating for industrial clients worldwide. Technical support and custom formulation available.
Category:powder Coating, Special powder coatings | Brand:MT
Factory Direct
7-30 Days Lead Time
MOQ: 100KG
Global Export
Introduction
Insulating powder coating is a thermoset powder formulated to replace traditional enameled-wire and dip-insulation processes on motors, transformers and electronic parts. It gives a dense, continuous film with high volume resistance, low dielectric loss and strong adhesion — applied electrostatically or by fluidized bed.

Product Features
| Electrical performance | High insulation, large resistance coefficient, low dielectric constant; edge coverage > 30%, breakdown voltage > 40 kV/mm |
| Curing flexibility | Rapid low-temperature cure, or residual-heat cure on heat-resistant parts |
| Film properties | Good adhesion and flexibility, moisture and aging resistance, thermal stability, flame retardant, colours adjustable |
| Chemical resistance | Heat, wear, water, acid, alkali and salt resistant; continuous, smooth, dense film |
| For large heavy parts | Fluidized-bed preheat and residual-heat curing recommended |
Technical Parameters
| Item | Result | Method |
|---|---|---|
| Appearance | Uniform, free-flowing powder; flow 120–140 mm | Visual |
| Colour | Per customer requirement | Colorimeter + visual |
| Adhesion | 0 grade | ISO 2409 / GB/T 9286 |
| Impact | 50 kg·cm | ISO 6272 / GB/T 1732 |
| Flexibility | 3 mm bend | ISO 1519 / GB 6742 |
| Cupping | Pass at 8 mm | ISO 1520 / GB/T 9753 |
| Pencil hardness | 1H | ASTM D3363 / GB/T 6739 |
| Breakdown voltage | > 40 kV/mm | Electrical test |
| Humidity resistance | > 1000 h | ISO 6270 / GB/T 1740 |
| Salt spray | > 1000 h | ISO 7253 / GB/T 1771 |
Typical Uses
| Motor casings | Motor stators and rotors |
| Instruments and meters | Small transformers |
| Encapsulated electronic components | |


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