"Pilgrim" wrote in message
news
Is the purpose of the goop they slather around the bead of a tubeless
tire to lubricate during installation, to help seal the tire rim
interface, or both? I have a freebee dolly on which one of the tire has
a very very slow leak at the interface. What is this goop? The local
auto parts store was of no help.

Thanks

Chuck P.

You can buy it from a distributor that sells tools and supplies to tire
shops. It's like a thick soap, I think the answer is both, although it
certainly does not stop all leaks.