Insulating Powder Coating
WA：+86 132 6275 2056
WEB: std-coatings.com
Introduction
Insulating Powder Coatingis engineered to provide high electrical insulation for motor components, transformers, and electronic devices. You benefit from excellent breakdown voltage, strong adhesion, thermal stability, and flame retardancy, making it suitable for general enameled wires, electronic component encapsulation, and high-voltage equipment. Its formulation allows rapid low-temperature curing or residual heat curing for heat-sensitive or heavy components, ensuring consistent performance and reliability in demanding applications.
Application
You can use this insulating powder coating for components that require both electrical insulation and mechanical protection:
| Industry / Field | Typical Products / Parts | Benefits |
|---|---|---|
| Electrical Motors | Motor casings, stators, rotors | High dielectric strength, edge coverage >30%, excellent adhesion |
| Electronic Components | Small transformers, capacitors, inductors | Thermal stability, flame retardant, moisture resistant |
| Measurement Instruments | Electrical meters, controllers | Continuous, dense coating, durable and reliable |
| Industrial Equipment | Sensors, relays, circuit boards | Resistance to heat, wear, water, acids, alkalis, and salts |
Recommended Application Method:Fluidized bed preheating or electrostatic spraying with residual heat curing for large/heavy parts
Curing Conditions:Adjustable depending on part size and thermal tolerance
Standards
These insulating powder coatings are manufactured and tested according to internationally recognized standards:
-
IEC 60384-14– Insulating materials for enameled wires
-
IEC 60085– Thermal evaluation of electrical insulation
-
ISO 2409– Cross-cut adhesion test
-
ISO 4624– Pull-off adhesion test
-
ISO 6270-2– Humidity resistance test
-
ISO 7253 / ASTM B117– Salt spray corrosion test
-
ISO 15184 / ASTM D3363– Scratch and pencil hardness tests
-
IEC 60243-1– Electrical strength (dielectric breakdown) test
-
RoHS Directive– Compliance with restricted hazardous substances
Parameters
| Item | Specification | Test Method / Standard |
|---|---|---|
| Appearance | Uniform color, loose powder, free-flowing | Visual inspection |
| Color | Customer-defined | Colorimeter + visual check |
| Adhesion | 0 level (excellent) | ISO 2409 / ISO 4624 |
| Impact Resistance | Good at 50 kg·cm | ISO 6272 (drop weight) |
| Flexibility | Bending 3 mm, no cracks | ISO 1519 |
| Cupping Test | Pass at 8 mm | ISO 1520 |
| Surface Hardness | 1H–2H (pencil) | ASTM D3363 |
| Electrical Insulation | Breakdown voltage >40 KV/mm | IEC 60243-1 |
| Moisture Resistance | >1000 h | ISO 6270-2 |
| Salt Spray Resistance | >1000 h | ISO 7253 / ASTM B117 |
Features
-
High Electrical Insulation
You gain reliable dielectric strength and edge coverage >30%, suitable for high-voltage applications. -
Thermal and Flame Resistance
Resistant to heat, aging, and flame, ensuring stable performance in electronic and motor components. -
Excellent Adhesion and Flexibility
Maintains integrity on complex surfaces, preventing cracking, peeling, or flaking. -
Chemical and Mechanical Durability
Resistant to water, acids, alkalis, salts, and mechanical wear. -
Customizable Colors and Curing Options
You can select color options and adapt curing methods for rapid or residual heat processing.
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