some of the local boys are using spray on bedliner (Rhino liner, linex etc..)instead of Gluvit for the bottoms of their boats .. its gauranteed for life , even on a drift boat .. if it ever comes off they will repair or replace the whole coating for free. so far the coatings seem to be lasting longer than Gluvit... the semi rough surface of the bed liner acually makes the boat handle a bit better. ....Von Warner