Hello .. I have been using a clear shellac on stained stairs and a
bannister recently and taped things off with low tack tape to paint the
remaining areas. When I removed the tape it came off easy but left the
shapes of the tape pieces in a sort of fogged blemish. It did'nt leave
a residue and came off with steel wool and a covered with a coat of
varnish but I am trying to educate myself in refinishing and am
wondering what would cause this blemish? I assume it has something to
do with curing time?
Thanks for any input.
I have found that working with low-tack tape (or any tape for that
matter), it is best to remove it before the finish dries - as soon as
it is just tacky.
Since shellac dries quickly, you would have to work fast! Your
shellac probably dried and lifted with the tape.
Pull the tape down over itself at an angle in the direction you're
I also finished a railing with about 15 coats of clear shellac. It took a
few weeks before the finish truly hardened. Before that time, it was quite
vulnerable to even soft things like towels or harsh rags, etc. It doesn't
surprise me to hear that tape left a mark.
Why not try rubbing out the tape marks with pumice powder then rottenstone?
Those two compounds should be effective in removing small marks left from
I used freshly mixed flakes for a box that was packed and shipped
accross country and the packing material imprinted itself in the
finish. Jeff Jewitt commented recently that it takes shellac at least
a week to cure to avoid this type of problem. Multiple coats of
shellac would exacerbate the cure time I would expect.
On Tue, 14 Sep 2004 12:46:51 -0000, email@example.com (Michael
You may well be correct here. However, if I were to apply 15 coats of shellac
without _fully_ allowing the prior coats to cure sufficiently, I would expect
about a month before it really hardened. I'll note that you can usually cheat
a little on the first few coats, but it will catch up to you.
Not saying that happened, just that it would cause this. A little test dab of
shellac on a scrap would answer the question.
On Tue, 14 Sep 2004 12:46:51 -0000, firstname.lastname@example.org (Michael Houghton)
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