Next, each surface within the tank needs to be exposed to the Metal-Ready for about 20 minutes so you will need to rotate the tank into a new position for each exposure. Metal-Ready is a rust remover that leaves a zinc phosphate coating on the base metal. I used duct tape to seal t...
Let cure. For exterior patching of holes that are larger than pinholes, use KBS NuMetal Epoxy Putty. Clean & prep the inside and outside of the tank using AquaKlean & RustBlast as stated above. Let dry. Scuff up area to be patched with 320 grit sandpaper then follow NuMetal ...