First Layer of Mud

So when I told the wife I was going to apply metal filler she looked at me as though I was nuts... no one's going to see it was written all over her face. Yeah... but I'll know it's there. I applied some sealer to the underside (wheelwell area) that I get from work. They expire after only a few months and I had some that had been expired for over a year. I had to go through 4 containers because it was already hardening. It's called PR 1422 B1/2 ... or just B half for short. It hardens to a tough rubber like material. It's impenetrable and impervious to just about anything. We even use it inside fuel tanks. If jet fuel don't eat it up... nothing will! Perfect for this area.