I just used POR on my original halftrack fuel tank and it worked nicely!! I have also had great luck with Redkote on other tanks which dries very quickly (high solvent content). The POR has a 96 hour dry time. I use a fan to circulate air thru my tanks and this helps both products to dry a bit quicker. One item of note, the POR's silver color makes it easy to see how well the coating is covering the tank. Very helpful if your working on something with baffles. Redkote is very slight blue in color not as visible. Both products work well as long as you clean the item thoroughly before sealing. If you acid wash your tank to clean it (1 to 3 mixing ratio), make sure you use a backing soda wash to neutralise the acid wash. Follow that up with a couple of plain water rinses, and then use a MEK rinse to absorb any moisture left in the tank before air drying. You can find MEK at Home Depot, Menards etc. No fuel tank sealer will work on dirty or damp surfaces.
Good luck with your project.
