1.garnet sand for sand blasting should control the air humidity
Garnet sand in sand blasting rust removal process, air humidity should not exceed 85%, the surface temperature of the workpiece should not be less than 3℃. Otherwise, condensation may occur on the surface of the workpiece, resulting in coating failure.
 
2.Garnet  sand sandblasting should pay attention to the paint time
The time  between garnet sand blasting and machining parts painting should be as short as possible, so that the dust and moisture on the surface of the workpiece is as little as possible, and the spray painting effect is good, the service life of the workpiece after spray painting will be longer