Hoping someone can help. Just had two bedrooms built in my basement.
Outside of the rooms there is an area about 16 square feet. The
contractor was not careful and plaster stained the painted basement
floor in this area. One of the builder's employees scrubbed on it for
a long time with Krud Krutter, Easy Bam etc..., but there are still
essentially flat stains all over this area. Is there some kind of
solvent or cleaner that will allow me to remove these stains? Thanks.
A mild acid may release the remaining plaster. Are you sure it is plaster
and not drywall compound? If it is drywall compound you may just need more
scrubbing, I don't think the acid will help much. Whatever it is, you will
have to repaint the floor, as all the scrubbing will have changed the
texture and any materials in the pores of the concrete may never come out.
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