Rhino Liner or Line-X over ATP.
I painted my floor with an excellent primer and a few coats of good exterior paint. My tires roll on raised e-track so I don't have issues with hot rubber vs. paint. My friend had her trailer Line-X'd (like Rhino). If I was to do it over again I'd go with the Line X. I don't think it will be much different in price than ATP. The weight difference probably isn't too much either. The installer said that he probably sprayed about 80-100# of it in a 20' x 102" trailer. It is probably 1/8-3/16" thick.
It is very easy to keep clean. You can hose it out, spray brake cleaner on any oil spots. It isn't slippery when it is wet! It doesn't reflect the sun and isn't ice cold in the winter.
If you go the Rhino/LineX route have them go 6-8" up the walls as well as the ramp door.
Since the Rhino lining isn't exposed to the sun in an enclosed trailer I imagine it will last a long, long, long time. It became popular in truck beds a few years back, and I have yet to see one where the liner is separating from the bed.
Isn't there a warranty on the Rhino liner?
[This message has been edited by Quickshoe (edited September 07, 2004).]