I'm looking for local sources for butyl tape (want to get a project done soon if I can) but am having trouble. Also there are so many varieties.
For example, this catalog from a local RV place
shows several varieties, including "Butyl Caulking Tape" ($30/roll), "Black Non-Trimmable Butyl Tape", "Putty Tape" (a "non-hardening butyl material"), and "Trimmable Butyl Tape (off-white)" ($10/roll). Unfortunately when I called they only have "Butyl Putty Tape" in stock which is not identical in name to any of those items, but I'm guessing it's the same as "Putty Tape".
Ignoring the black, are the others basically the same as far as the uses in this thread go?