Rubberized Undercoating

YellarStang99

YellarStang99

New member
I want to buy some of the black rubberized undercoating (aerosol). But I was wondering how difficult it is to apply (i.e. - mess, globbing, drips/runs). And also what the best way to apply it is. Can you still put it on w/o having to remove the wheels? Do I need to cover any suspension components or anything before using it?

Thx for the help.
 
i wouldn't do it. I was restoring a 240Z that was undercoated and over time it dies out and cracks, letting moisture in. The whole structural part of the body was completely rotted out. It was so bad I had to scrap the car. If you want to undercoat with something, Eastwood sells a clear undercoating that is wax based that won't dry out. It's meant for inside the doors but I don't see why it couldn't be used on the outside. Personally, I just use WD-40 every time I change my oil.
 
shotime said:
i wouldn't do it. I was restoring a 240Z that was undercoated and over time it dies out and cracks, letting moisture in. The whole structural part of the body was completely rotted out. It was so bad I had to scrap the car. If you want to undercoat with something, Eastwood sells a clear undercoating that is wax based that won't dry out. It's meant for inside the doors but I don't see why it couldn't be used on the outside. Personally, I just use WD-40 every time I change my oil.
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You are mistaken SIR. Everyone uses rubberized undercarrige spray. How would it let in moisture? Its better to use it then letting the bare metal under a car exposed to weather. Some cars/trucks have protective plastic under the entire fender well and in that case I would recomment AGAINST using it UNLESS its already been put up there before and if it really looks bad.

It goes on just like paint. You need to be careful becuase you dont want to get it on any of your paint. I will come off but it gets rubbery and smear's like jelly. If you can use a can of spray paint then you should have not problems.

Word of advise go you wal mart they carry the cheapest have I found something like 2.99 a can. Dont worry about getting the 3m stuff thats like 10.99 a can.

Good luck.
 
http://autopia.org/forums/showthread.php?threadid=45135&highlight=undercoat

I've undercoated for the past 3 years, so I KIND OF know what I'm talking about. If it really prevented rust, my Z would be in my garage instead of a junk yard. It works marginal at best. Keeping it clean is the best way to prevent rust. My mom has a 7 year old Taurus, with no undercoating, and the underside has minimal surface rust at the seams. This is daily driven in WNY and left outside 24/7. If you want to undercoat, this is what I'd use-
http://www.eastwood.com/shopping/pr...=1117&itemType=PRODUCT&RS=1&keyword=anti+rust
 
I have had much better luck thoroughly cleaning the undercarriage/wheelwells and after allowing them to FULLY dry, using a small roller or brush to paint the areas with RUSTOLEUM.
 
I'll have to check at WalMart to see what they've got.

But I was going to buy some rubberized undercoating in an aerosol from Eastwood that I had seen on a website.

The only reason I ask really, is that on one of the wheel wells there is no more of the factory coating. Three of them still have the factory black stuff, but one of the rear ones doesn't. This is something done by the previous owner I suppose, because it was like that when I bought the car.
 
I just used the undercoating to quiet down the noisy tires on my Altima. I removed the weels, masked the suspension and body panel. I sprayed rustoleum first to protect the metal should the undercoating crack and peel away I still have some protection. I was so pleased with the result that a week later I drove the car on ramps, masked off the exhaust and hit the underside of the floorpans with the same procedure.

Good Luck!
 
I have to agree here. Undercoating is good for appearance. It hides alot of the rusty look that most cars get from driving in bad weather conditions. I'm not sold on the prevention of rust though. The only true way to prevent the rust from coming through would be to paint and clear both the inside panel as well as the outer, which the auto makers will never do. Buy the cheapest stuff that you can and paint away. I would tape off any painted surface that is close to the exterior paint of your car. As for any steering related items i wouldnt worry about it. I do agree that a blacked out wheelwell does look good.

Sellncars
 
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