Still have some ways to go. I do not know if I should undercoat under the car. I read POR-15 is the way to go if your car is rusty. Under my car is not rusty what I though was rust was dirt. Actually it cleaned up really good under there with degreaser and the garden hose.

Any suggestions??? Is it even worth it spraying the undercarriage or is it just for looks?

 

I have cleaned it up since this pictures. Pictures will be uploaded soon to you all opinion.

 

of course its worth coating the undercarriage, not just for looks. the issue is that some undercoatings can trap moisture between the rubberized coating and the metal causing it to rust and rot without you ever even seeing it. por15 is a very trusted item and I would encourage using that.

what I did was sand and rustoleum the underbody. I did this about 3 years ago and it has held up incredibly well.

 

Thank you for the input. I think I will go ahead and do my underbody also since I got everything removed.

 

I would POR 15 that.

Clean anything loose off then get the POR 15 kit with the cleaner and prep spray, follow directions and go to town.

 

POR 15 needs a rough, or textured, surface to adhere properly. If your underbody metal is smooth, a good primer/single stage would probably be best.

 

I would just clean it real well. Its not rusty except for maybe the exhaust and heatshields which can be fixed or replaced.

 

Look for a place with a lift that could media blast it is my best advice. Otherwise use a wire wheel on a grinder, some phosphoric acid and use whatever coating on it you want. Undercoating, por-15, Rustoleum, whatever. If you are worried about rocks chipping the finish off undercoating or Por-15 would be better.

 

POR15 is over price, plenty of others just as good or better.

 

.
Cleaned everything up with a wire brush and Simple Green

 

1st coat of spray on undercoat

Dont think it turn out so bad for my first time

 

Still have a few spots I missed to touch up.

 

What did you use?

 

3M undercoating from the parts store. This stuff drys real hard not easy to scratch off.

 

man that cleaned up nice!

 

Thanks instro84, when I first jacked the car up I was worried it was rusted out, but to my surprise it was just really dirty.