I just finished preserving my sills on my 97 D1. I did the inside with the cavity wax last year and wire brushed all surface rust and painted on some Extend rust neutralizer on all exposed rust, then sprayed them down with the hardwax today. While I was undernearh the truck I noticed some splits in the undercoating where rust was bleeding through in the floor. Anone know the best way to treat this. I didn't want to poke around too much for fear that I'd poke through the floor. If the rust isn't too deep, will just cleaning and spraying with hardwax slow or halt it or should I scrape away the undercoat and neutralize the area?
"A deep respect for tradition allows vision for liberation from stagnation."
1983 V8 109
1997 Discovery XD
1972 SIII 88SW
1969 SIIA 88 Pickup(Crushed)