Boy it looks an awful lot like Masterseries permanent rust sealer
http://www.masterseriescoatings.com/index/products/primer/
Heavy aluminum content, kind of thick, sounds exactly like Cresent is describing. I used it on 100% of my fj40. Some of it has sat around for years getting wet and exposed and anything with two coats on it looks like the day I put it on. If you do not apply it smooth, it is a pain to sand. Body filler and all top coats apply to it real well. Have had no issues. Wonder if it is the same stuff, sure looks the same.
http://www.masterseriescoatings.com/index/products/primer/
Heavy aluminum content, kind of thick, sounds exactly like Cresent is describing. I used it on 100% of my fj40. Some of it has sat around for years getting wet and exposed and anything with two coats on it looks like the day I put it on. If you do not apply it smooth, it is a pain to sand. Body filler and all top coats apply to it real well. Have had no issues. Wonder if it is the same stuff, sure looks the same.