We will always wash, post-cure, remove support structures, and sand every print, to improve the surface where the supports were. (But please select surface finish "Yes"-Sanding) When you receive your print, no further finishing is needed for the vast majority of applications.

But if you need to paint on them, further fine sanding is required to make the surface much smoother and a primer has to be applied to make sure that the paint will stick properly and more durably to the surface of the print.