'72 Charger Under-body Coating

[Jarran]

I want to undercoat my car (looking at the stuff sold by eastwood), but there is a lumpy rock guard looking material already there. I was wondering what would be the best way to go about removing it, the car is scheduled to be painted soon, so a way that wouldn't damage the new paint would be very helpful.

 

[ssok]

I highly reccomend that you do not use undercoating. First, it traps water and crud where it would normally drain, and secondly it doesn't stick too well. The few times I used it, the metal began rusting after a few months (on my outside stored F150). I reccomend that you use POR 15 and the correct procedure to apply it to clean metal.

 

[Jarran]

I was looking into using por 15 and I think that's the route I'm going to go. I just need to find a way to get the factory undercoating off

 

[oxytousc]

I was looking into using por 15 and I think that's the route I'm going to go. I just need to find a way to get the factory undercoating off

Eastwood and a bunch of other companies make an undercoating removal solvent. That and a wire brush!

 

[Jarran]

Eastwood and a bunch of other companies make an undercoating removal solvent. That and a wire brush!

I was hoping for something that wouldnt take hours and hours to do, call me lazy, but I was thinking of having it media blasted, would that work out decently? I'm trying not to mess up the exterior paint

 

[oxytousc]

Yeah, media blasting should work.

 

[Jarran]

Would I need to remove anything before they do it? right now everything is still hooked up and there.

 

[blackblazer717]

What also works awesome is an air powered needle scaler, origunally used to remove barnacles from boats. It works real well on really hard old undercoating. On my 69 rr. While on rotissory took 6 hrs to get everthing off, every knook and cranny

 

[welder47]

I agree, needle scaler, works fast just wear ear plugs and have extra needles. Stop imediatly if you see a needle fly out, the top part is still in the gun pounding the hell out of the air hammer inside the gun. POR 15 reminds me of thin rubber when applied, not real happy with the stuff but is ok in some cases.