I have an idea I want to bounce off you guys...
On cars with the expanded foam rubber weatherstripping, the best thing when it gets worn is replacement, but sometimes the parts aren't available or the dealer wants your first born.
I came across a product called liquid EPDM that is used to coat roofs. EPDM is ozone and UV safe and comes in black. Apparently, it can be thinned for use on covering decks.
Anyhow, what do you guys think about using this as a new "skin" over intact foam weatherstripping, or as a cover for not-so-intact pieces that are repaired (maybe using gasket sealer or something else to fill the voids). I don't think it will work for basket-case stripping, but for stuff that's relatively there, and is just worn, it might be just the trick.