Sanding floor pans Sucks

As stated prior to this post, Por15 will not stick! PO of my old Cuda applied it and it peeled from the bare metal surface. Use a good Epoxy Primer like PPG DP90LF. Has its own etching properties! No need for acid wash prior to application. Or take it to your local Linex sprayer and have it sprayed with that. Thin light plastic coating that completely seals the surface. Also dampens noise.