Ford Raptor Forum

Hey I finally picked up my truck friday, its everything I wanted and more. And this thing is a chick magnet haha. Anyway, I figured some of you might be interested in a clear undercoat I applied so I got a few pictures for everyone to take a look at. I think it came out very nice, not to mention it doesn't make a mess like a traditional undercoat. All the pictures are with the undercoat applied, if you look closely you may see a slight yellow haze on things and that is the undercoat itself. I think its a good idea for anyone who likes to keep the bottom of their truck looking as good as the rest. As a tech I hate to see brand new cars with the bottom rotting out after 5000 miles.

I hear ya, and that's why I stay away from undercoating like Crown and the other 'permanent' ones. They can trap moisture against the steel and cause hidden corrosion.
Oil based undercoats are pretty good as they won't stick if there's moisture there, and they do stay around for a long time.
My cheap alternative as a teenager was to use a Wagner power sprayer and used engine oil on my Bronco. Worked great, helped wash the mud off, but Dad didn't exactly like what it did to the driveway... But I ddin't have much rust on a 20 year old truck.