lexus offered to rubber coat the underside. common, do you think i am that stupid? I am sure they are paying attention to these forums. I said no, we ll see what they say..
That may have been a good option when the vehicle was new and before any rust started, but it would be a a bad option now. Once any form of rust or corrosion starts it needs to be removed and the source of the problem (water, salt and chemicals) solved, but to seal the underside of the vehicle with rubber and trap the problem against the metal ... well, somebody is certainly stupid for suggesting that, but it is NOT you.
P.S. Undercoating vehicles used to be almost a necessity and I had a new 1980 Dodge van completely sealed by 'Ziebart'. That required removing every piece of trim, the seats and the carpeting that wasn't clued to the floor, then drilling access holes in the pillars and other parts of the frame to inject their sealant. The van dripped sealant for days, even after re-assembly, but many years later when we sold it there still wasn't a trace of rust.
Hard to imagine needing to do that now ... much less me actually doing it!
complain to lexus thats what i did and it will be going to litigation if its not fixed. the 4runners have it too, but thats ok, because toyota is not the pursuit of pefection like lexus...
the rust on the front is ok as its on the bare metal ends, its the rear axle housing thats got me because they were in fact painted and still have rust developing. the hubs also should of been painted but werent if i remember correctly...
there are 2 products out there. boeshield and fluidfilm. check it out
Are boeshield and fluidfilm just spray-ons or something?
I'm not convinced there is a potential rust problem, but coating the underside of the vehicle is likely to create the problem! Unless the vehicle is new, unrusted and bone dry, a rubber coating will hold moisture in contact with the metal frame. That could cause more problems than it prevents.