I am in the process of applying polyurethane to some new windows. The
instructions call to apply poly onto the glass by about 1/16" in order to
form an airtight seal. In case anyone is wondering, doing this with any
accuracy is almost impossible. Can the excess poly be removed from the
glass using a razor etc once it cures?
Hey there Rev., I just did a kitchen window using the 3M Blue tape and it
worked well. Just because you can paint a straight line doesn't mean
everyone else can. After it dries and you go back with a razor blade, you
also break the seal he wants.
I placed the tape on the glass and after the poly dried, I used a razor
blade to score the poly along the tape line then gently pulled the tape up
so it was being pulled at almost a right angle away from the window frame.
This left a nice clean edge all around.
There are several products he can use, tape, liquid tape etc. that are
available - I suggested tape since it worked fine for me and was not a waste
of time or money.
When I painted outside of windows, I used a steel rule - against the
frame - and just ran a razor blade scraper along it. Worked fine. The
paint/poly should lap onto the glass a bit to keep moisture from
entering the space between the glass and wood.
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