Well do you have any better ideas than that to make rubber grip to the ice? 20 grit sand paper would help too, yet I don't think the paper would stay on the tires very well.
Maybe super glue some rocks to them.
There is a place...cant right off hand remember th place that does the tire studding...I have seen these tires in local kart shops...Brian Carlson might have more info on this for you...we have a local ice wrink that has had a few kart races a few years back....
What, isnt he running a 4-wheeler? I actually think Freezeman's idea is pretty good. We use black beauty to blast with, and I think it could work if you could get it to stay on the tire. Bedliner? Im not sure how youd get it stick?
I appreciate the ideas of how to get the tire to create bite, but that's not the issue here. The issue is that the tire gets sticky after a lap or two and it causes the grooves to stick together. When this happens we just slip and slide because we lose our edges. I like the bleach and methanol, it's along the same lines as I was thinking already. Currently we cure the tires for a couple years before we run them, just trying to speed that process up a bit.