Yea its pretty good stuff I did a few tests with some parts I had in the weeks leading up to receiving my truck, It sprays on like an oil and after about a day its a tacky wax. After about 2-3 days its fully cured and completely dry and doesnt collect dirt. However, if you get something and scrap it hard enough it will come off, so in the future it may need a touch up here and there but overall I think it ten times better then that tar junk. Atleast if it does start to rust somewhere you can see it and take care of it. And it makes the bottom of your truck look like it got a clear coat. lol
Someone asked if it would be good for a truck a year old.........I dont see why not. Yea you probably have some rust starting already but I live in the salt belt and when my black truck came off the carrier friday it looked white. It had to be detailed twice it was so bad, and then I went to my friends shop to power wash the salt off the bottom. Once I got it back to the dealership I work at I had to wipe the whole bottom down by hand before spraying the undercoat. And I already had rust starting at that point......So I dont think it ever to late to undercoat. Besides, rust only forms with moisture and oxygen. Under sea piping is submerged its whole life in salt water and never rusts, and thats because there is not enough oxygen present to start the rusting process. If you do a good job spraying the undercoat and seal out the oxygen whatever rust has started wont progress. Thats how products like POR15 work.
The product is Amsoil HD Metal Protector, its advertised as a multipurpose lubricant as well as undercoat. In my opinion, I think it could be used for some kind of lubrication but its best used as undercoating.