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rvdave
Joined: 24 Jan 2009 Posts: 191
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Posted: Tue Nov 24, 2009 9:36 pm Post subject: windows & fiberglass |
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Am at the point of doors, windows, and getting ready to attach plex to fiberglass. I'm considering using sikaflex, West Marine has the sikaflex291, is this the one others are using, or is there another? Also, is it common practice to glass over the window edge to cover the flange/plex bonding point so the adhesive can't be seen through the window?
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_________________ Dave Ford
Cadillac, MI |
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nukeflyboy
Joined: 05 Jan 2008 Posts: 162 Location: Granbury, TX
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Posted: Mon Nov 30, 2009 11:40 am Post subject: Re: windows & fiberglass |
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Why not use the weld-on? It isn't that hard to work with and you don't have to research compatibility and strength.
Plexi expands and contracts differently than the fiberglass and sometimes you see cracks in the painted finish around the windows. A thin layer of glass over the joint and covering the overlap will help avoid the cracking in the paint. Smooth it in with your favorite fill.
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_________________ Dave Moore
RV-6 built and sold
RV-10 built and flying |
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johngoodman
Joined: 18 Sep 2006 Posts: 530 Location: GA
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Posted: Mon Nov 30, 2009 12:58 pm Post subject: Re: windows & fiberglass |
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Weld-on was the worst product I've ever used in my life. The warning label makes MEK look like mouthwash. .Respirator, goggles, and gloves are essential. It sets too fast and it's too runny. Cabosil helps but cuts into your set time. Once it's dry, you will have a devil of a time getting the unwanted droppings off. I used it on the side windows but decided to try Silpruf 2000 for the windshield. I like the results so far and it's safe to work with. I know Dave Saylor did his with Silpruf so maybe he can chime in.
John
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_________________ #40572 Phase One complete in 2011 |
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