Does no one use silicone any more?
Until we got carpet 25 years ago our top racers all used silicone coated buggy tyres. The tyres were pretty useless back then, Schumacher soft full spikes were about the best around, but we cut the spikes off and coated the tyres in silicone sealant and rolled them together to give a stippled surface, and when the silicone wore out you just recoated them. Don't know whether it would last too long with today's motors though.
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