What works best on Rust?? Rust killer, undercoating & inhibitor?
-hopefully I have this posted in the right spot
I have an Avenger Coupe (a Sebring Coupe actually, but same thing) that I'm trying to clean up. It is in v.good shape for the year, and hasn't seen winter in quite some time, but had some rust starting underneath that I wanted to catch before it got out of hand. I sandblasted/took a grinding wheel to the entire frame, hit it with some red rust primer, than 2-3 coats of tremclad rust paint, then a good coating of rubberized undercoating. That was in July, and would you believe that the rust is back with vengeance?? even worse than before it seems. And the car hasn't really moved much since July!! I just dropped a 3.0L in it not all that long ago, so it's one of my toys.
I'm looking for 2 things. The first: something to stop the rust on the outside of the frame etc, and seal it off from any further moisture (I've tried most of what's out there...except por15, which I hear is good). The second: something I can spray inside all those tiny drain holes along the frame, something that will creep in those hard to reach areas. I've tried rustcheck clear undercoating (kind of like a wax-oil), and that red rustcheck "rust inhibitor" fluid, but I am not satisfied with either. The metal on this isn't like the frame on my old GTX or truck that's for sure...once the rust is in the newer metals, it goes crazy! lol
any advice? looking for the best "tried and true" stuff. Thanks!
Last edited by Jon Mopar; 10-14-2009 at 08:03 PM.