A lot of drift boat builders/owners are using the spray on urethane
liners to a high degree of sucess. Linex and rhino seem to be the
facorites. I used a roll on product, herculiner, for the plywood bed
of a trailer and am fairly plesased with the results. The spray on
professional stuff can be applied pretty thick, is very tough, and so
it is used on driftboats for rock protection.

Kevin