Ok sounds good. POR-15 is all I have used as well but after reading the thing on the eastwood company site it got me thinking so I started reading other forums and I saw people saying that the rust preserver or whatever it is that eastwood uses is a bit cheaper and better. I have only ever used POR-15 and it's worked great for me as well and I have gone through gallons and gallons and GALLONS of this stuff but only have seen it on something for 2 years. After the 2 years it still seems to be setting up fine but I am wondering about 10 years down the road not just 2, that is why I have asked this question. I will probably just buy a gallon of POR15 and the marine clean, etc and use that on the chassis and stuff. As far as it fading from UV, I don't care, its all underneath the vehicles and inside so I am not worried.