Razor Blade removing chunks.
Thread Starter
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Joined: Sep 2011
Posts: 57
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From: Midlothian Texas
Razor Blade removing chunks.
Thought I'd try the razor blade method on the back deck near the gas tank lid. There are a few areas that lifted off like the attached pic.
There appears to be only 1 repaint, with black primer the last layer.
* Is this normal?
* Could this be a mold defect that was filled?
* Did I use too much heat?
Thanks,
Jeff
There appears to be only 1 repaint, with black primer the last layer.
* Is this normal?
* Could this be a mold defect that was filled?
* Did I use too much heat?
Thanks,
Jeff
Melting Slicks
Joined: Aug 2001
Posts: 3,047
Likes: 124
From: Wichita KS
My wife used a razor blade and HAIR DRYER to remove the paint from my 1980. A HEAT GUN is too much heat. The paint should come off with about the same ease as peeling an apple. If the surface is too cold the paint will "shatter" as the razor works, too hot and it will gouge. When the surface temperature is correct the paint peels off in strips.
Start with little or no heat and you will experience how the paint "shatters". Gradually add heat with a HAIR DRYER and the paint will now "peel". It takes a little time to get the hang of heating the paint ahead of where you are working the razor blade. Sorry, more difficult to explain than to do.
Last edited by mapman; May 23, 2012 at 09:59 AM.
Thread Starter
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Joined: Sep 2011
Posts: 57
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From: Midlothian Texas
Thanks for the help!
I am using a heat gun because it is quiet compared to a hair dryer. Doing this at night, and trying not to wake the little ones.
The paint appears to be a single stage urethane, and the chunk was not caused from the edge of the blade gouging. It came up attached to the base primer.
Thought it might be a factory defect that was filled.
I will be gentler with the heat gun though.
I am using a heat gun because it is quiet compared to a hair dryer. Doing this at night, and trying not to wake the little ones.
The paint appears to be a single stage urethane, and the chunk was not caused from the edge of the blade gouging. It came up attached to the base primer.
Thought it might be a factory defect that was filled.
I will be gentler with the heat gun though.
Safety Car
Joined: Oct 2007
Posts: 3,729
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From: Austin Texas
Corvette of the Year Winner 2017
2016 C3 of Year Finalist
your scraping too hard also, the white is bare, raw scrapped fiberglass,
you want to leave the gray looking surface,...Primer.
your not shaving, ....you only want to remove the old paint.
get rid of the heat gun, or back it off.
you want to leave the gray looking surface,...Primer.
your not shaving, ....you only want to remove the old paint.
get rid of the heat gun, or back it off.
Team Owner
Joined: Jun 2000
Posts: 38,923
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From: Southbound
Cruise-In II Veteran
Probably not. A panel with a visible defect that size would have been rejected at St. Louis. Just the same, it could have been a bad panel which looked okay and was only biding its time before showing up.
Looks like it showed up.
Looks like it showed up.
Team Owner
Joined: Oct 2004
Posts: 23,831
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From: Springfield MO
St. Jude Donor '07
The way they played "fill and grind" with these bodies at the St. Louis plant, I wouldn't be surprised if they had just dumped some filler into that hole, smoothed it out, and painted right over it. It's the reason that it's so hard to get a hood to fit on these cars - the panels had just about zero quality control.
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Melting Slicks
Joined: Aug 2005
Posts: 2,683
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From: Working on the car NY
SS Urethene is tough stuff. When I "bladed" my old lacquer off, it came off fairly easily - but that was lacquer. The primer, even though 70's stuff, was more resistant - for that I used thinner on a rag.
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Joined: Sep 2011
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From: Midlothian Texas
Thanks All! I gave up on the blade method. No matter how gentle, once I get through the urethane, It goes violently into the glass.
Now to fix the damage... Would Evercoat 870 work as the filler, and allow me to block the car later?
Thanks,
Jeff
Now to fix the damage... Would Evercoat 870 work as the filler, and allow me to block the car later?
Thanks,
Jeff