According to temperature classification, paint heating and drying can be divided into low temperature (below 100 ℃), medium temperature (100-150 ℃), and high temperature (above 150 ℃).

Low temperature drying (up to 110 ℃) is suitable for coating and drying wooden and plastic parts that are prone to thermal deformation; Used in automotive painting for drying paint films such as nitro paint, metallic paint, and moisture (usually at 60-80 ℃, 10-30 minutes), and alkyd resin paint (usually at 90-110 ℃, 30-60 minutes).

Medium temperature drying is suitable for drying thermosetting (i.e. baking polymerization) coatings such as amino alkyd resin paint and acrylic resin paint.

Electrophoretic primers, water-based paints, and powder coatings are dried at high temperatures (usually within 30 minutes).

The drying of paint is commonly known as heating drying. It can be divided into drying and forced drying. Drying refers to the process of drying the final coating by heating, which means that the coating cannot be moved without heating; Forced drying refers to the situation where coatings that can naturally dry are heated to promote drying (shorten drying time).