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Thursday, August 28, 2014

Question

What is the proper way to take 20 years of finish buildup off a marble floor? Would it need to be honed or can I just strip the finish and polish with recrystallization?


Answer

You will need to start by chemical stripping so you can accurately determine the condition of the marble. Crystallization may be an option, honing will not produce a high shine, you may need to restore the marble by diamond polishing or possibly one of the new diamond impregnated floor pad systems may produce an acceptable shine.
Twenty year’s buildup is a lot and will involve multiple applications of stripper solution and much agitation to loosen it all. Time and patience will be required.
Once you expose the clean marble surface, you can better determine what you need to use to restore the gloss. With that much protection, I would guess the surface will show few signs of wear.
Avoid acids that will damage the marble, neutralize and rinse well after stripping the finish so the surface is as residue free as possible for evaluation and to prevent alkaline damage to the stone.
Lynn E. Krafft, ICAN/ATEX Associate Editor
lekrafft@juno.com