https://www.well-shod.com/EQUILOX-MIX-TIP-MEDIUM-150-420ML
Make sure to store the Equilox in climate control (keep it in the house, not the barn or the car!) when not actively using it. Some folks keep it in the fridge, I haven’t done that, but I also don’t use it enough to have a huge sample size.
If you use magic cushion and have any desire to reuse the shoes, I would definitely add a pad of some sort to the sole of the shoe. Getting magic cushion off is a nightmare. If you don’t plan to reuse them, then no biggie.
I like the Luwex Premium Sport DIM https://www.well-shod.com/LUWEX-PREM-SPORT-SILICON-1-LITER It stays soft and breathes pretty well so less funk IME. I also really liked the Mustad ComfortMix
A25 (their soft), but it’s expensive. Will last you FOREVER, but still. https://www.well-shod.com/COMFORTMIX-HOOFPAD-200CC_2
I’ve also used EDSS soft and Glue-U Shufill. Both are good an available in smaller sizes so less of a large commitment. Until you know how your guys feel about DIM, use a less-is-more approach. Too much on the sole can cause soreness and bruising in a horse that is sensitive. I’d start with just a small amount (maybe ping-pong ball sized when combined?) spread in the CG and over the frog. Let them tell you if they want more. Since I have horses who tend towards thin soles and somewhat sad digital cushions, I go for the soft ones. I try to stay below Shore A30.
I think a heat gun would probably work ok, but be slow. I’m honestly not sure a hair dryer will get it dry enough if you’re in a truly wet area. I prefer a torch (my favorite is one like this: https://www.harborfreight.com/butane-micro-torch-63170.html) since you can concentrate on a smaller area and it goes a bit quicker. I usually do two or three passes during the winter (torch, wire brush, torch, wire brush, torch, wire brush).