Undercoating removal????
 

I just purchased a 71 Nova 5900 original miles original paint, tires, int. etc anyway this thing has been under coated since new. It's almost like grease, kind of soft. The car was sold new in Ohio. Being accustom to souther cars (no under coat) I don't know what will cut it. So far I've tried gas and kerosine and purple cleaner no luck yet. Any ideas???

Re: Undercoating removal????
 

Propane torch and a putty knife https://www.yenko.net/ubbthreads/imag...iggthumpup.gif

Re: Undercoating removal????
 

with a fire extinguisher nearby! https://www.yenko.net/ubbthreads/imag...mlins/wink.gif

Unfortunately, that is one of the best ways.

Re: Undercoating removal????
 

Sorry, forgot about the extinguisher https://www.yenko.net/ubbthreads/imag...ns/shocked.gif Remove the interior, it goes up quick!

Re: Undercoating removal????
 

Heat Gun and Kerosene.............plastic or wood scraper, that wont hurt ORIGINAL underbody primer.

Re: Undercoating removal????
 

Remove fuel lines, tank etc. If it were me, I would strip the underside of the car.

Re: Undercoating removal????
 

Assuming the car is stripped to bare bones; we're talking body shell only... would media blasting the floor pan and maybe the frame rails to rid the area of undercoating an acceptable means of removing undercoating?

Re: Undercoating removal????
 

Nah, it just bounces off!

Re: Undercoating removal????
 

Media will bounce off, you need to strip it first. Dipping the body will remove all the undercoat. Also, if you are going to media blast it latter, you will save money by removing the undercoat before you bring the body to the blasting service.

Re: Undercoating removal????
 

Another thread about removing undercoating.

https://www.yenko.net/ubbthreads/show...fpart/all/vc/1

Re: Undercoating removal????
 

here's the direct link to that mustang site on the Peel-Away product: http://www.svend.net/mustang/ww73/ww73.html

Re: Undercoating removal????
 

PLEASE follow Chuck's suggestion. It's the right way to do it. Nothing else works, or is safe for the car or you.
I used a torch MANY years ago on my '62. The flame lit the undercoating and it caught on fire a few times. I blew it out of course and kept going. The next morning I woke up and the entire left side of my body was paralyzed, from my ear to my toe. Had to go to the hospital. Luckily, the feelings came back. The evaporable gases from that stuff are NOT to be breathed. Don't do it!!!

Verne

Re: Undercoating removal????
 

i not sure how well this tool will work on the soft tar undercoat? mine had the hard stuff, i used a snap on tool called a crud thug. its kind of a wire wheel on a cylinder shaped tube whichs is air powered. it was a life saver, kinda on the exspensive side, but it was worth it to me. then you can media blast the metal and it looks new again. dennis

Re: Undercoating removal????
 

Yep...Chucks way..heat gun and soft scraper if you want to save whats underneath...I did a 62 Chev this way...and that stuff was nasty...looked like asphalt and asbestos mixed together...

Re: Undercoating removal????
 

heat gun, scraper for the majority then solvent tooth brush and rags to finish up should only take you about 60 hours.

Re: Undercoating removal????
 

As far as scrapers that won't damage underlying paint, you can pick up wood shims at places like Home Depot on the cheap. A pack of a dozen or so is a couple bucks. They're maybe 8-10in long and 1.5in wide and shaped like a wedge.

Re: Undercoating removal????
 

[ QUOTE ]
PLEASE follow Chuck's suggestion. It's the right way to do it. Nothing else works, or is safe for the car or you.
I used a torch MANY years ago on my '62. The flame lit the undercoating and it caught on fire a few times. I blew it out of course and kept going. The next morning I woke up and the entire left side of my body was paralyzed, from my ear to my toe. Had to go to the hospital. Luckily, the feelings came back. The evaporable gases from that stuff are NOT to be breathed. Don't do it!!!

Verne

[/ QUOTE ]

Verne! What the H were you doing - huffin the stuff, open the doors next time https://www.yenko.net/ubbthreads/imag...mlins/grin.gif

Re: Undercoating removal????
 

Marlin,
Believe me, it wasn't intentional. I had the garage door open but I still inhaled enough (more than enough). Imagine waking up because the right side of your body feels like it's lying next to something on it's left that doesn't move....... https://www.yenko.net/ubbthreads/imag...lins/crazy.gif
I like to use the little plastic applicators that come with body filler. They're stiff and have a nice tapered edge.

Verne

Re: Undercoating removal????
 

When Dean owned the Benchmark Chevelle,he told me about an industrial chemical stripper he used to remove the reminants of the old hard undercoating that then revealed the beautiful original belly.
He said he had to drape plastisheen all around the car,for protection and on the floor to to capture it,and wear protection as well,but once finished,he rolled it all up with all the old undercoating for the garbage.I saw the finished result and thought it was outstanding.I can't recall what the name of the product was,but SS427 might know.

Re: Undercoating removal????
 

Went through this myself a couple of years back. I started out with Kerosene and tooth brushes. Long tedious work. https://www.yenko.net/ubbthreads/imag...lins/crazy.gif
I talked to Brian and Joe at the SCW and asked their expert opinions on the best and safest way to remove it, yet retain as much original finish and markings as possible. Unfortunately, they told me to use 'Kerosene and Toothbrushes!' https://www.yenko.net/ubbthreads/imag...ns/worship.gif

I used a spray bottle to apply the kerosene, let it sit overnight, then attacked it again the next evening after it had softened. The plastic bondo applicators are good, as well as plastic putty knives. I sanded the corners off the putty knives before I started using them just in case the sharp corners might gouge the red oxide. When it got down to a final wiping I again sprayed the area, let it sit a couple of hours and did the final scrub with a soaked shop towel. Took along time but I think the end result was worth the effort.

And BTW, kerosene fumes can be harmful too. Be sure to keep some air circulating at all times!!!!

Re: Undercoating removal????
 

Their are a few product out that work (Eastwood products) but my experience with "diesel fuel" in a spray bottle has proven true for the past three resto's.

Take a bottle of diesel fuel and spray it on an area that needs removal. Soak it for a day or two and the coating will soften up and peel away like butter. Obviously the thicker it is the longer it will take. You will need to be patient and allow it to break down the coating. Others frown upon using it but it worked wonderful for me.

Please remember SAFETY at all times using any chemicals or fuel based solvent. Ventilate the area well, and always have a fire bottle or garden hose readily available. Also NEVER toss out solvent coated or likewise rags into the trash can. Fire can result when chemicals come into contact with other synthetic products. Lastly, alway's put out any open flames in your shop before using these products. Take no chances.

My uncle lost 8 prized street rods three years ago from a loose spark that came into contact with a oily rag that he forgot was on his bench, resulting in a total shop loss. He is still recovering from the loss of years of car collecting, and rod building. Insurance covered the loss but cannot replace his internal grief.


Wacky https://www.yenko.net/ubbthreads/imag...mlins/flag.gif

Re: Undercoating removal????
 

Don't laugh......Easy Off oven cleaner will soften the thick stuff. Several applications may be needed so use a ridged scrapper to get thru it.

Finish stripping with kerosene or diesel fuel in a spray bottle. Althought its time consuming, it doesn't hurt any original parts.