If the surface has to meet special requirements that the untreated spray layer is not capable of, post-spray treatment is essential.

This is generally accomplished by the following finishing steps:                     

• Impregnating/sealing
• Brushing
• Honing
• Grinding
• Polishing
• Lapping
• Smoothing
• etc.

Which of these finishing steps are used depends on the desired surface properties. However, the roughness achievable also depends to a great extent on the coating material and coating system.