What is Powder Coating

powder coating

(materials) A dry coating method in which fine clear or pigmented powder particles, containing resin, modifiers, and possibly a curing agent, are electrostatically sprayed onto a substrate and heated (melted) in a oven to form a continuous film.

Powder coating is by far the youngest of the surface finishing techniques in common use today. It was first used in Australia about 1967. Powder coating is the technique of applying dry paint to a part.

In normal wet painting such as house paints, the solids are in suspension in a liquid carrier, which must evaporate before the solid paint coating is produced.

In powder coating, the powdered paint may be applied by either of two techniques.

The item is lowered into a fluidised bed of the powder, which may or may not be electrostatically charged, or

The powdered paint is electrostatically charged and sprayed onto the part.

The part is then placed in an oven and the powder particles melt and coalesce to form a continuous film.