The reasons and solutions of common problems in painting.
Dry or slow
1. Phenomenon: after a period of time, the film is still wet and unhardened.
(1) the coated surface contains water;
(2) curing agent with too little or forget curing agent;
(3) use diluent containing water and high alcohol;
(3) the temperature is too low, the humidity is too large, and the drying conditions are not reached.