The quality standard of coating surface must be measure in order get qualified quality. Plating Service company should have this method in order their service company can survive and stand forever, because their standard will become reference of other service company to compete. If service company don't have standard, this make easily for them to blame without any reason. The standard of each type of coating should be different for example for hard chrome plating, bright chrome plating, and black chrome plating.
Some method to measure the quality of hardness of coating surface such as follows:
Some method to measure the quality of hardness of coating surface such as follows:
The standard of hardness is illustrated by the most hardest material is diamond which have hardness value of 10, other material will have below this.
Soft: scale value = 1 – 3
Medium hard: scale value = 4 – 6
Hard: scale value = 7 - 10