can i sandblast stainless steel?

can i sandblast stainless steel?

We say yes you can. The reason for sandblasting stainless steel is to roughen the surface for preparation to be spray painted or powder coated.

Google says, Grit blasting leaves a rough profile that makes the stainless steel prone to crevice corrosion, whether or not the surface is free of iron. Thus, grit blasting should be avoided. Sand blasting — This method is generally unsatisfactory. New, clean sand will remove debris and heavy iron-contamination from the surface.

Remember when Google mentions sand or sandblasting, the abrasive used is not sand. Sand is not allowed for use with sandblasting. The most common abrasive used for sandblasting to remove paint or rust is an abrasive called Garnet. Garnet is a naturally mined mineral and is perfect for use with sandblast cabinets, pressure pots or hand held gun assemblies. There are many other types of abrasives to be used with sandblasting, like glass beads, walnut shell/kernel, steel grit, aluminium oxide and more.

As you can see from the photo above, these machine parts have been specifically manufactured from stainless steel. The machine parts previously had been spray painted straight onto the stainless steel surface but the paint basically came straight off and did not last. Now the best way to ensure the paint adheres to the stainless steel machine parts is to rough up the surface. By sandblasting the stainless steel machine parts they now can be coated to help the paint stay on the surface for longer.