pic: Team 100 Summer 2K13 Teaser #2.0*10^0

[T^2]

Originally Posted by DampRobot

40 Shore A. We figured the softest stuff would work the best, and it did. We'll probably end up cleaning it off with Acetone in competition to keep it clean. Keep in mind, the 40A stuff is only for a few 6" and 36" pieces, so make sure to get the right ones. I don't think 80A would work very well, it would be too hard.

See this and this. Do not use acetone, denatured alcohol, isopropyl, or MEK on polyurethane. We found in competition that these solvents make polyurethane slightly less grippy when applied multiple times, and also much more liable to tearing. We switched to just cleaning our rollers with a wet (with water) towel, and it worked fine. I recommend you do the same.