by Mike
(Hilham, Tn.)
Q. Do you stain before polishing?
A. You aren't very specific as to what you are polishing, a countertop or floor, but I will give you the simple answer.
You stain during polishing, around the 400 grit phase. Once you've removed enough surface material and achieved the look you like with grits 50 to 400, you stain while the surface is still porous enough to accept the stain.
After the 400 grit phase of polishing you aren't removing any more material from the surface, you're really just removing the scratches from the previous phase and honing the surface. This is important because if you remove any surface material you will remove some of the color from the stain also.