Does all the old butyl tape need to come off?
Getting ready to leave on vacation tomorrow and noticed the vent in the cabover was leaking. I stuck eternabond tape over the old butyl tape as I was advised it was alright, but it didn't stick proper...
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Yeah I tore it all down and have all the vents ripped off. Just grabbing some mineral spirits and plastic scrapper to get the old stuff off. The old sealant was butyl on the bottom edges and it was overlapped on the edge over the screws. Is that still the best option? Local rv place doesn't carry eternabond, only stuff they have is 4" x 25' for 100$
