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Old 06-14-2014, 12:33 PM   #1
Monaco Owners Club
Join Date: Oct 2013
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Butyl tape vs Gasket for window

Help!!! In process of refrigerator switch out. Window over dining table is out on our 2003 Monaco dynasty. Looks like originally they used a gasket and maybe black silicone to seal window. (assuming it is silicone, as been fun getting it off around window on coach, as others have noted).

Is it better to go buy a new rubber gasket and use silicone or some other beading material (since silicone appears to be a bad word) and what should that material be when we reseal window OR

Should we do rubber gasket (RV world sells it) and butyl tape together OR

Just butyl tape, OR

butyl tape and a beading material, and do we go all the way around with beading material or just across top and part way down sides.

ALSO: the "foam" insulation between the walls appears to have been sprayed with some sort of black material that I ASSUME was a water repellant material and some "chipped" when getting window out. Anyone know what that is??

Window is out, rain will be coming this weekend, so don't have a lot of time for decisions :(. Thanks

Deb & Mike
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Old 06-14-2014, 01:29 PM   #2
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Butyl tape will work well if that is what is available. I have watched a few videos including one I believe for the RV geeks and that is what was used. I recently removed my hot water tank and used butyl with no leaks.

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Old 06-14-2014, 02:52 PM   #3
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Same discussion today by Badbolt- also on this page: Resealing window after removal
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Old 06-14-2014, 06:03 PM   #4
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Originally Posted by Hooligan View Post
Same discussion today by Badbolt- also on this page: Resealing window after removal
Thanks, looked at that one. Wasn't sure if rubber gasket was in the mix. Went to camping supply place and tech there told us he uses foam gasket and ProflexRV. Got 2 sizes of foam gasket but neither is wide enough for our window, and from reading forums, lot of leak complaints had foam gaskets.My DH and I have decided/agreed to use proflexRV, but still debating on going with rubber gasket like originally installed (which we will have to go back and buy) or butyl tape (which we have). This window does not appear to have leaked in 10 years with rubber gasket, are there any stats on how long/well butyl tape holds up?
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Old 06-14-2014, 09:32 PM   #5
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I used butyl tape on my door window when I put it back into the frame, then used silicon to seal the frame to the door. I was following the instructions of the glass guy who did the window reseal for me.

When using butyl tape it will provide an excellent seal, but leave yourself some room for it to spread.
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Old 06-14-2014, 10:16 PM   #6
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I did use putty tape on the small passenger side window. I am going to remove a much larger side window to replace one of the thermal panes. May not use putty on this and will buy new rubber seal.

Keep in mind to use black putty tape if your window is black. I used white and it visible. Not a huge deal, but, you can see a thin white edge between the back frame and wall.

I think the putty tape would be a more reliable seal than the rubber. Just my opinion...

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