Sand blasting is a method of cleaning the part surface by blowing quartz sand out of the sand at high speed with compressed air
Sandblasting includes 80#, 100#, 120#, 180#, etc. the higher the value, the more fine sandblasting, but at the same time for surface machining defects cover effect is worse, after sandblasting oxidation, will cover the machining process scratches, bruises and knife pattern.
# is a representation of particle size, such as 80# refers to 50~80 mesh. The particle size is 300~180 microns. The greater the number, the more fine granularity.