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Old 03-29-2021, 07:52 PM   #1
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Temporary Sealant to Find Leak (Roof and Siding)

I have a mysterious leak (most of them are) near the rear of my camper. All seals and joints look good, so I'm really stumped, so is the service tech. I'm thinking of using butyl tape over all suspect joints to narrow down by process of elimination. This would not be permanent - that will be done by service tech later. I know I can use butyl on the fiberglass without issue.
My question is if it is safe to use on TPO/EDPM roof? I've tried to search to see if butyl is petroleum based (I know it is synthetic) but have not found anything stating whether it is a petroleum product. Anyone know? Anyone have any other temporary / easily removable solutions?
Any ideas welcome!
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Old 03-30-2021, 10:41 AM   #2
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You should be able to use butyl tape without issue as they use it to seal the vents and skylights on the roof during manufacture.

Have you considered finding a dealer that does pressure testing (Sealtech, etc.), where they pressurize the RV and use a soapy solution to find any leaks?
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