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Old 06-28-2012, 10:06 AM   #1
Join Date: May 2012
Location: Oregon
Posts: 39
Default Caulk/Sealant

Looking to replace the front panel of my X139 (2007). I notice a caulk/sealant was used where the panel meets the roof top. I pulled some off and it felt very soft .

What are some of the stuff I can use once I put a new panel in and seal it in that area?


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Old 06-29-2012, 03:58 PM   #2
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Join Date: Oct 2010
Location: Southwest Arizona
Posts: 624

The most popular are Dicor and ProFlex. What you don't want to use is a silicon sealant. Silicon is wonderful stuff, but, silicon migrates (the actual silicon component) and is near impossible to remove. The result? If you later need to do a repair and re-seal*, it will be almost imposible to get a new layer of sealant to "stick" due to the silicon (microscopic particles) left from the original silicon sealant. Butyl rubber caulk is a much better choice if you don't want to use one of the "RV specific" caulks/sealants. EternaBond also makes some very good "tape" type sealants used as a base sealant for trim, fittings, sealing tears, etc.

If you've ever tried to "re-seal" a bathtub or a window and found it near impossible to get another good seal that will stay for more than a month, the original sealant was probably silicon I don't use silicon caulks/sealants for anything. Latex - yes; Butyl Rubber - yes, Polyurethane - yes, but, Silicon? Never.

My 2 cents, your mileage may vary...

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