Yesterday i found a almost full can of dupli-color rubber coating stuff i cant remeber what it is called. So i sprayed the rear wheel wells and the frame i did not sand the rust off frame should i be ok for a while it suppoed to be a rust preventer but i dont know will i be ok?

 

I sanded my frame first and then put of the 3m undercoating stuff on... and it looked good, and lasted all summer. But then that winter all of it came off, i think it came off because of the salt.. the next summer i use a
wire brush on a drill to take the rust off and painted the whole frame with rustoleum i looked great.. It also held up good in the winter..there are a few place i will need to go back and touch up... then i will paint it all again to match and hope it doesn't come back.. hope that helps[/align]

 

You have to sand it first. Otherwise little rocks and other road debris will knock off the rust and therefore the pain and you will be back to square one.

 

ill probly get two more cans of it tommarow sand it down and then spray it Thanks!