greg 79 F150
01-05-2006, 05:05 AM
Just read on another forum where a guy is doing his research in finding the best product for the rust treatment on his trucks undercarriage. He listed por 15, rust bullet, Eastwood, and ZR as the ones he may use. He dropped ZR from his wish list because the ZR rep told him that ZR could NOT be put on a undercarriage without having a finish coat of paint over it. This has not been my understanding for the usage of ZR so far. Has something changed ?