Undercoat/Stoneguard on stock 87 GN?

[mikec1969]

Just wondering was lower body stoneguard standard on all 87 GNs? How about undercoat? Thanks. Mike

 

[strikeeagle]

Yes - "stoneguard"
No - "undercoat"

strike

 

[mikec1969]

I'm assuming the undercoat was done @ the dealer.(Rusty Jones?) Stoneguard looks like it could have been applied a little nicer. Undercoat too for that matter! Thanks.

 

[Evaddave 87gn]

Under coating Applied at dealer

My undecoating was applied at dealership at time of sale. The origanal owner had planned to use the car in the winter, although he never did. He said he wanted to be safer than sorry.

DAve

 

[mikec1969]

What's the general opinion of undercoated cars? Do people prefer undercoated or non-undercoated? Will an undercoated car be worth less in the future? Man, Rusty jones was a big deal at the Cadillac dealer I worked at in 1985. The Finance guy (he also sold you undercoat) was the highest paid guy in the place!

 

[hiballin]

personally, i steer clear of undercoated cars for two reasons:

1st: most cars that have had undercoating applied have small holes drilled and then capped with plastic plugs in the rocker panels, the doors, and quarters. this takes away from originallity due to the extra holes that were bored and capped.

2nd: living in the rust belt as i do, i've seen plenty of cars that have had undercoating applied that dried out and cracked over the years. once the cracks form, it allows moisture and salt to enter and get behind the undercoat which accelerates rust through.

you're better off with a car that has not been molested in that way. the best rust proofing on earth is motor oil. i use it on all my winter driven cars to keep them from rusting out. it just plain works.

here's a couple examples of this: look at a car near the engine, trans, and rearend. any metal around those areas covered by oil buildup cleans up like new while metal nearby not coated with oil is rusted. another example is oil used to wipe down firearms. basically, what the oil is doing in both applications is keeping oxygen from reaching the metal and causeing rust to form.

the only drawback to oiling you panels is that over time, the metal will draw it into it's tiny pores and may make repainting a real pain in the ass due to fisheyes that occur because the paint is being repelled by the oil. but if you take care of your original paint and don't wreck the car, it won't be an issue.

undercoating was/is just another tool that the dealers use to increase thier margin on the cars they are selling. which explains why the finance guy was the highest paid guy in the joint you worked at (not to mention marking up the interest rates he was charging people on thier loans too).

just my 2 cents...

 

[Evaddave 87gn]

Oil Hmmm

Not sure about the oil idea, howver i'm sure it would work great, just have to reapply. Any way, as far as value, I would tend to beleive most would not want to have a car that was undercoated, (on a strictly value basis,) mainly due to the fact that undercoating often = hideing. Lots of people use undercoating to hide repair work that has been done. As far as rust, most of our cars sit in a nice warm heated garage so that should not be an issue. I can't beleive the undercaoting would make a drastic differeance in price on a very low, showroom, well documented, high end collector car. Just as long as the documentaion shows the dealer applied. But face it most of our cars are never goiong to see snow ever agian, if they ever did in the first place.

Dave

 

[Black Box]

My car has the original undercoating on the underside of it, and it's EVERYWHERE. One of my projects this winter is to attack it with something (Simple Green or Mineral Spirits) to get it the hell off my car. I don't drive it in rain or winter, so I doubt removing it would have any detrimental effects. It'll help shed a few pounds! It's gonna be messy, but it will look a helluva lot cleaner.

As for the Stoneguard, I'd love to get rid of it too, but I'm not repainting my car just yet.

Steve

 

[Fuelie600]

I have had udercoating ( for lack of a better word ) on my car since day 1, which would be 8-16-1985. Still looks as it did when applied. As far as I'm concerned, it keeps plain 'ol condensation from contacting the metal---this means no surface rusting. My coating is more of a dark orange/black, and is still soft to the touch after 20 1/2 years. To me, this adds value to the car. Brian