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Opinion on undercoating?

yzboy85

yzboy85

New member
Winter is quickly approaching. I live fairly close to the ocean, and not only that but they tend to salt the hell out of the roads in my area for the littlest amounts of snow. As we know our cars are fairly prone to rust, and I've seen first hand what can happen to our rocker panels..

I bought my car last winter so this will be the first whole winter I've owned it. The underside of my car is in pretty good shape (despite rust holes in my mufflers), and I would like to keep it that way. So my question is, what do you guys think of taking my car to a garage to have them undercoat it? Is it worth the cost, or even the time, to help preserve my car?

I would like to (try to) do it myself, but I can't get the car any higher than jack stands, so I probably wouldn't be able to do the best job.

So, opinions?
 




ericspecullaas said:
also you can do this http://www.grandprixforums.net/threads/80782-Question-NO?p=1130699&viewfull=1#post1130699
Click to expand...

That was really interesting. I'm not sure I like the yellow, but I understand the purpose.

I have a family member who sprays straight diesel fuel on his truck every year and sprays up under the fenderwells with a garden sprayer. It seems to do a decent job. Kerosene would be a not-so-smelly alternative if the smell of fuel bothers anyone's nose. I think he re-coats it a couple times throughout the winter. We used to get more salt than snow, but the last couple winters have been opposite, but we still see our share of corrosion contributing materials.
 
The good thing about my underside is you can choose any color you want as long as its oil paint. I wouldnt use a foam roller to apply it though, its not like latex paint, its THIN. When I find time I am gonna try the garden sprayer and go nuts for more coats/faster coverage.

And you forget the car is yellow until you go under neath it, then its a "oh ya" moment.
 
POR15 is supposed to be applied to already rusty surfaces, or very rough clean metal. I wouldn't recomend it on already coated or smooth metal. 3M makes good undercoating and if your underside isn't already rusted that's what I'd recommend.
 
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