Originally Posted by AlexBmur
And just curious, if I am very careful about slowly peeling back the plastic since I just need access in one corner, will the existing Butyl work so I can just re-affix the plastic when I put it all back together or is it a one use thing and once you peel it away I will need some new Butyl tap to reaffix the plastic?
The Butyl is ridiculously sticky. You won't have any problem sticking the plastic back into place, assuming you can prevent the piece you peel back from sticking to itself. I noticed that if I peeled slowly, the Butyl stayed on the door. If I peeled very quickly, the Butyl usually stayed on the plastic.
Either way you can reuse it.