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STAINLESS STEEL FINISH FOR ADHESION

WHAT IS THE BEST SURFACE FINISH TO SPECIFY ON STAINLESS STEEL SHEET TO OBTAIN OPTIMUM ADHESION WITH EPOXY AND/OR URETHANE ADHESIVES?

DAVID EASTWOOD
- CORONA, California, USA
2003

Normally the rougher the finish, the better the adhesion; however, it also depends on the viscosity of the coating itself. Too rough a finish using a thin coating does not adhere too well. As for the surface finish to specify, I'd probably say go with a normal mill finish which is around 35 rms, unless you need some kind of bright reflective finish. In the latter case, you may need secondary finishing or specialty materials.

AF Kenton
retired business owner - Hatboro, Pennsylvania
2003

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