Over the summer, I had the beast Undercoated. When I came to pick it up that day, I was pretty dissappointed to see the finish. It looked like someone drove the truck thru a tar pit. It was glomed on, and looked all gooey, and not professional looking at all. Anyway, this past week we got our first snow here. And with all the salt on the road, I got a car wash. I realized that the salt that is on the frame, where the undercoat is, isnt coming off. It looked like it has discolored the black undercoat permanently. Its all white and clouded looking. If this doesnt come off, I will be having some serious complaints with the people who put this on. Could this undercoat be painted over with with Por15? Or does it all need to be sanded off first. I am hoping maybe a body shop might spray the entire truck again with Por15, and maybe that will look much nicer, and actually help to prevent and cure the rust that was on the frame and underbelly. Any thoughts?

 

What kind of paint is it?

 

I have heard it said many times that undercoating a vehicle is not a good idea, because once some water gets behind the coating it keeps it there a long time and can actually cause it to rust faster. I prefer to use Eastwoods Rust Encapsulator paint and then top coat it with Eastwoods Chassis Black.

 

Should I get this coating removed, and redone? The stuff they use is a two part sealant. The first one neautralizes the rust and then it cures the rust. Then they cover it with a sealent.

 

I believe the POR-15 stuff is pretty specific about being used directly on rusted metal or a least scuffed up metal for best adhesion. It definitely doesn't go over other coatings already on the metal in question. Same would be true for Eastwoods Encapsulator of which I have also used.

 

Honestly, im not really qualified to answer this question. Id rather tell you that flat out instead of giving you some ****ty advice. I dont have any experience with undercoating. It seemed at first that you were talking about insulation like you find on inside of fenders. And im pretty sure thats not supposed to be used as undercoat, but apparently they didnt use that. Anyway...

Yeah i guess the best you could do is get a few different opinnions from different mechanics and go from there. Either way, good luck.

 

By your description it sounds like they sprayed an acid to neautralize rust and etch the surface and then undercoating which is rubbery, but an unactivated product. A lot of places use undercoat and it can also hide some sins or poor areas realatively easy. But I belive it will pick up dirt and road grime and not be easy to clean. I think you would be better with an activated bedliner material, and can be tinted whatever color you want. Although that would be more expensive material. Por 15 as far as I understand actually needs a somewhat rusty surface to adhere, or roughed up. I haven't ever used it. I read of a lot of people using and liking it, but I am not someone who would like leaving rust and depending on some product to take care of it long term.
Now that the undercoating is sprayed underneath, It is probably going to be messy and a pain to remove. You could try wiping with kerosene and removing the bulk with a putty knife. Others heat and scrape. I think no matter what method you use to remove, it will be messy and a pain, specially with all the areas to remove from underneath a vehicle. If its undercoating or gravel guard like I think, it aint sanding off. It will just gum up the paper.
You want something that will last a very long time and be easy to clean? If you can remove most of the undercoating, you could have the underneath sandblasted which would allow a good surface for adhesion as well as removing any rust ect, and then have it epoxy primed or coated, which you could get in colors. Epoxy primer isn't uv resistant, but underneath it won't be exposed to uv's. If everything is blasted and rust free, the epoxy will be a good protector against corrosion and seal the metal from air and moisture, as well as being fairly easy to clean. Really got money burning a whole in your pocket, get everything epoxy'd and powdercoating. That would be pretty much bullet proof I believe as well as look nice enough to put little mirrors underneath so everyone can see when you park it. .

 

Yeah the material is gooey. I didnt like the look of it. I think I am just going to touch it up with some underspray from the store. I hate how that crap is so mooshey, and doesnt dry for ever.

 

thats a liquid undercoating, it doesnt dry persay... it stays in an oily stage werks well but makes a f*&$ing mess of your truck and you if u paln to work on it. the salt is just laying within the oil it should be ok but in my opinion id get rid of it and go with rubberized so u can paint over it and less mess.

 

yeahggggggg

 

Lots of great advice already. Here is mine. Keep the truck clean on the inside and outside , pop in a c/d , kick back and enjoy driving it. Dont think about the undercarriage. You will sell or wreck the truck way before any significant problems arrives from the goo on the frame. good luck. jmo

 

Yeah I keep the trucks new paint job waxed and rain X all the time, and vaacum the inside every time I get a carwash. But I want to protect the undercarriage, one because it has a pretty high clearnece with the stock F350 lift, and two I like it looking nice. I am angry I let those amatures spray that goo all over my new colored shocks, and all over my new gas tanks, and exhaust system. I am going to get someone to remove it, and have it redone. I want to be able to clean the bottom when getting bottom blasts at car washes, not seieng that old grose gooey frame.