I sprayed the whole inside of my rig about 2mos ago. Worked real well, seems tough, just not as tough as rhinoliner...No issues yet except the stench.. That stuff reeks for about 2-3 weeks after it's sprayed in.. I mean i got high just driving it, had to leave the top off the until it cleared out some... It seems to go on better if it's sprayed on, the sprayer was only about 35 extra, but it's worht it. Hope this helps---Fog