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Just replaced the larger windows in my Mk1. Used the foam backing & rubber<img src="emoticons/icon_question.gif"> gasketing fresh from South Shore Yachts. I read the pertinent section in Black Arts and did the job much as described therein, but try as I might I cannot get rid of the puckers on the inside corners. The directions that came with the gasket say I might need to trim 1mm from the outside edge at each corner, which I tried on the first corner but not on any succesive ones (due to the ineffectiveness of that attempt), but that didn't seem to make a difference. Has anyone else had this problem? Is there some magic goo that I can use to stick the gasket to the plexi? My inclination is to snip a vee at the inside corner so the gasket can then lie flat against the plexi, but am hesitant to start chopping my new gasket.
Chriswheat Second Wind
Chesapeake Bay MD
Chriswheat Second Wind
Chesapeake Bay MD
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I replaced mine this past spring before launch. Make sure to dip the gasket in warm soapy water. It says on the directions not to stretch the gasket but in order to get the wrinkles out you need to stretch it somewhat. With the gasket in place use your wetted finger and with some pressure smooth the gasket in one direction.
Don't cut it!
Also, after I replaced mine I was still getting water between the gasket and the window. This went away when the gasket shrunk a bit in the sun.
John Lavallee
Molly J
Mark II #431
Molly J
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Ages ago, I seem to remember someone saying that the material should be compressed in the corners rather than stretched so that it could conform to the curve and not pull out as it shrank. Can't find the reference, so perhaps that's mis-remembering.
Also, any flexible material benefits from warming. The safest way to do this around a boat (for hoses, window gasket or whatever) is in a bucket of water as hot as your hands can bear (and soapy in this case). Heat turns tough rubber and plastic, temporarily, into putty in your hands.
- Admin
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I did mine last year. Warm water/soap, and careful not to stretch in the corners or anywhere else. I had to massage carefully. Takes a feel that is hard to explain. Like John, one window leaked a hair in very heavy rain, but I have not seen it do that this summer. I seem to recall that I had a bit of wrinkling in a couple of corners, but it went away with time. Went much easier than I had anticipated, actually. Watching friends struggle with their window replacements on other types of boats, I am pleased with this setup. The one concern I had was that maybe the plexi was a hair thinner than the original, but so far everything is working out fine.
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1974 Mark II C&C 27
Last edited by (2010-07-11 02:57:56)
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1974 Mark II C&C 27
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