Differences between powder coating and wet coating

The difference between powder coating and wet coating (traditional liquid coating) is quite clear – these are two different methods of coating surfaces, each with its own advantages and disadvantages.

Powder coating

Process: fine paint powder is electrostatically sprayed onto a grounded metal surface. Then the part is heated in an oven at a temperature of ~160–200 °C until the powder melts and forms a hard coating.

Properties:

• The coating is highly resistant to mechanical damage, UV rays, and chemical effects.

• Smoother and more uniform surface (no run-off, “drip”).

• Thick and even layer (usually 60–120 µm).

• Only conductive surfaces are used (usually metal).

• Environmental friendliness: almost no solvents and volatile organic compounds (VOCs).

Limitations: requires special oven and equipment, not always suitable for minor repairs or local repainting. Wet painting (with liquid paints)

Wet painting

Process: the surface is covered with paints containing solvents or water. They dry naturally or in drying chambers.

Features:

• Can be used on both metal and plastic, wood, concrete, etc.

• Thinner paint layer (usually 20–40 µm).

• Greater variety of colors, effects (metallic, pearlescent, etc.).

• Small areas can be repainted or repaired.

Disadvantages:

• Lower resistance to mechanical and atmospheric influences.

• Runs and unevenness may occur.

• More solvents, VOCs – less environmentally friendly.

Key Difference

• Powder coating = more durable, industrial, environmentally friendly, but requires an oven.

• Wet coating = more versatile, cheaper for small quantities or repairs, but less resistant.