Installer covered limestone with tyvek and
taped it to the stone. the tape left marks on the stone. so far no solvents or
stripers have had any effect. the strange thing is some of the tape marks
are dark and some are light. When wet the tape marks act like sealer and do not
soak dark but the surrounding stone does, some areas look etched (I think the
tape pulled some grain off the stone) and others are shinier than the stone
finish. What's going on here?