How long have you had your Race Deck? Swisstrax advertises temperature tolerances of -22F + 248F and a compressive strength is 5120 psi to support jacks and jack stands. I've jacked my car several times with no problems.

The tiles are suppose to resist most chemicals, including hydraulic fluids, brake fluids and battery acid, and hot tires won’t mark 'em. Mine are made from polypropylene, same stuff as your gas tank and car bumper.

Swisstrax has a 12 year warranty, so far no problems, time will tell.