Originally Posted by Anthony22
Not a bicycle puncture repair kit, then?!
Bicycle repair kit will work for Viking drysuits (butyl rubber, I think), and for temporary patches on latex seals. Tegaderm bandages seem to work pretty well on seals also.
For the suit itself, usually Aquaseal and Cotol is the way to go (though that may vary depending on material.) If you don't have McNett products over there, Aquaseal is a polyurethane adhesive/sealant, and Cotol is a cleaner accellerater. Shoe Goo and Marine Goop are pretty similar, and you can try MEK or toluene as a thinner (don't think it will accellerate the cure, but it might; the solvent is the primary ingredient in Cotol.)
For small holes, roughen, solvent wipe, and apply the sealant. I usually form a dam of several layers of masking tape or similar to keep the glue where it's supposed to be, though that's not always possible. For larger holes or tears, same procedure, but use a reinforcing material on top of the adhesive, and another couple of coats of glue to secure the patch.