With thermal spraying, mechanical clamping is one of the main mechanisms for layer bonding.

Roughening the component surface prior to the spraying process activates the surface and the resulting unevenness and undercut helps layer bonding. Roughening the component surface is mainly done by blasting with metallic or non-metallic blasting media.

For surface pre-treatment, COATEC has many different blasting facilities:

• Enclosed blasting cabins for large components
• Automatic blasting systems for series parts
• Manual blasting boxes for small and individual parts