how to poly windows?

Oct 25, 2003 5 Replies

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?



Thanks


It can be removed. It takes some practice and the right brush to do the job well. You truly need a good "sash" brush and not some 50¢ crap from Wal Mart. A good brush will la on a nice even coat and you will be able to get that 1/16" fairly easy by the second window. Ed snipped-for-privacy@snet.net

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Depends on the tape.

Blue tape does well, the cheap tan stuff doesn't.

Waste of time and money. Lay on paint with a loaded brush, then scrape the edges with a razor blade like a real painter would.

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.

Bob S.

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