I am just wondering how well this stuff actually works. I am talking about the stuff you can get at like Pep Boys in the spray can. My car is silver and it used to be green. The owner before me got it painted and they did a good job of painting it. They did all the door jams and hatch area but the only place they didnt do was the engine compartment. So when i open the hood, its all green inside. I just recently pulled out my motor so I want to paint my engine compartment black. I dont have the money right now to tow it to a body shop or pay to have it painted so I am wondering how well this stuff will work. If i do it with the spray can I will also be using a sanding disc that attaches to a drill in order to prep the area. If anyone has any experience with this stuff please give me an opinion. I was thinkin ill do it and just keep saving to have it professionally painted, and if it starts to peel or anything, then once i have enough to have it painted, ill have it painted. Kinda like a temporary fix until i have the money. Well, anyway, anyone who can help, please do. thanx