The biggest problem with these wheels is the lack of a similar material for repair. Some people use bondo (too rigid) or silicone (too soft), but until now there was no real alternative.
Scratching me head, I was digging around in the lab and found two 10 year old tubes of 3M rubber bumper repair epoxy. This is the stuff used for filling and repairing the elastomeric/endura bumpers on Camaros, GTOs, Trans Ams, Cudas and the like. Mixed in equal parts, it cures fast, is extremely flexible, sands easy and can be painted. Since I had nothing to lose, I used it: I ended up stumbling onto the perfect repair material.
