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I purchased marble stairs and I would like to know how to refinish them to get them shiny again? | |
the marble has been outside for close to 80 years. It is in really good shape but is scratched and the finish is dull.
Answers:
1Marble outside, is not meant to be shiny, it will not resist. They begin mat and are sold mat for outside. Inside the polish can be managed. Unless of course you mean granite.
But to restore marble it is very possible and you will get a surprising result when done professionally. You can do it if you have a knack with such tools as grinders. It is very similar to sanding wood but you will need diamond disks (best) or metal bond disks (excellent). You can also the same used when sanding wood but of course the life will be much shorter.
Sand it down with the roughest grit to remove old material quickly until you are left with a smooth even finish. then you move up in grit, one number at a time ex(40, 60, 80, 100, 200, 400) coarsest to smoothest until you get the finish you are looking for. With marble, when you get to 400 -800, you will start to see the shine, so i suggest you do not go over 400. Then you apply a penetrating sealer. I do not suggest sealers that leave a shine or film as they yellow and wear off very easy. The when its time to restore it, it really becomes troublesome.
From: Andy
how we but the carpet on marbel
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