Coating Performance Evaluation Index And Additive Performance Evaluation Index

Coating performance evaluation index

1.Coverage capacity: refers to the full coverage capacity of the coating, also refers to the depth capacity

2.Uniform plating capacity: high, medium and low area coating thickness uniform ability.

3.Leveling ability: The better the leveling, the better the brightness

4.Corrosion resistance: refers to the corrosion resistance of the coating, coating rust resistance is mainly related to the thickness of the coating and the sealing film. Potassium chloride galvanized layer rust prevention ability is very poor, galvanized layer of closed passivation can prevent oxygen and moisture in the air from penetrating into the coating, prevent rust.

Additive performance evaluation index

1.High turbidity point: additives with high temperature resistance and low turbidity point are easy to precipitate at high temperature at a certain temperature, resulting in large consumption and poor performance.

2.High salt resistance: the process range can be expanded, which is conducive to the improvement of electroplating performance. Additives with low salinity tolerance are easy to salt-out, poor performance and large consumption.

3.High brightness: good performance additive leveling good, current distribution uniform ability, plating ability, high brightness, uniform thickness, good depth ability, light speed.