Thin roof metal opinion! - Page 2 - Chevy Nova Forum
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Old 15th-May-2019, 12:41 AM   #16
lewie415

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Quote:
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Does POR-15 count as an acceptable surface for Lizard Skin if scuffed. When I pulled the old factory padding out I became pretty concerned. No way was I taking any sanders to that surface. It had to be pitted at least half the thickness of the roof. Quick cleaning with a scuff pad then POR-15. Those factory pads are like sponges holding condensation in against the roof.
I have never top coated por 15, but I was reading the tech sheet and it looks like a tie-coat is needed to top coat over por 15. You may want to contact por 15 to see what is the best way to prep to it for putting lizard skin on top of it. A simple scuff and shoot might be enough.
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Old 15th-May-2019, 11:58 AM   #17
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Can Lizard Skin be applied with a brush or a roller? I do not have access to a rotisserie. It would seem that now is the time to apply whatever I'm going to do before any other work gets done to the interior.
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Old 19th-May-2019, 10:21 AM   #18
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x3 lizard skin

i have used it as a sound deadener and rust proofer on a 48 gmc and my 71 nova and it does add structural integrity.
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Old 19th-May-2019, 10:22 AM   #19
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i used a brush for the hard to reach areas. i don't see why it wouldn't work with a roller.
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Old 19th-May-2019, 11:37 AM   #20
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Does POR-15 count as an acceptable surface for Lizard Skin if scuffed. When I pulled the old factory padding out I became pretty concerned. No way was I taking any sanders to that surface. It had to be pitted at least half the thickness of the roof. Quick cleaning with a scuff pad then POR-15. Those factory pads are like sponges holding condensation in against the roof.
Yea I would find a good fiberglass man, epoxy resin and a few layers of mat and cloth fiberglass will repair and strengthen your iner roof, and if done properly it will outlast your car.
I will be doing the same for my longroof cause my gutter are rotted out. Hopefully this helps.
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Old 21st-May-2019, 08:14 AM   #21
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Sorry for being late getting back. Lots of stuff going on. I'm getting resistance from my body guy on spraying anything on the inner roof. He keeps saying it'll get all over the car if he tries it and can't quarantee it'll stick for any length of time because of heat buildup. His suggestion is just to put Fatmat and then some sort of sound barrier. This is starting to become a real thorn in my side.

More than likely I'll end up with the car back home with nothing applied to the inner roof so it'll be up to me as to what gets put on.
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Old 21st-May-2019, 03:45 PM   #22
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My fenders were pretty thin after the media blasting process. They would shake and vibrate like nobody's business when the engine was running. I did a fiberglass backing to the fenders and they are stiff as boards now.
Probably won't be as easy to do the inside of the roof, but be sure to wear protective goggles and throw away suit while doing it.
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Old 11th-June-2019, 04:58 PM   #23
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After much research and thinking, I'm going to give Lizard Skin a try. Like most of the stuff I try, I'll probably mess it up but I have to do something.

Question.....will a cheap undercoating gun work with this product? I just can't seem to force myself to spend $80 + shipping for something that I'll most likely only use a couple of times.
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Old 12th-June-2019, 12:57 AM   #24
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After much research and thinking, I'm going to give Lizard Skin a try. Like most of the stuff I try, I'll probably mess it up but I have to do something.

Question.....will a cheap undercoating gun work with this product? I just can't seem to force myself to spend $80 + shipping for something that I'll most likely only use a couple of times.
With my experience, the lizard skin gun works really well. I tried to use a siphon feed raptor gun and it does not work. There is not enough siphon and the product is too thick. I do know the orfice on the lizard skin gun is pretty big, pretty much the same size as the raptor liner gun. I cant think of a another style gun that is cheaper that would work.
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Old 12th-June-2019, 06:31 PM   #25
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Riverboatman, thank you for this post, I also am concerned with my roof so am enjoying this sharing of ideas. If you do apply would you be so kind as to share some pics of what you do? This may be next after I finish what I am into now and would appreciate your experiences.

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Old 13th-June-2019, 08:00 AM   #26
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It would be ideal to apply anything with the car on a rotisserie- turned upside down.
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Old 13th-June-2019, 09:43 AM   #27
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I totally agree about the rotisserie but I've searched high and low, followed all the leads and still did not come up with one. My car now has the front clip installed so I'm in a situation of moving forward with what I've got. That was the reason for me asking about applying Lizard Skin with a brush or roller.

The guy that is doing the body work has moved me into this situation because of the lack of a rotisserie as he doesn't seem to want to deal with the thin roof situation beyond what he has already done to straighten out the oil can warps.

The inner roof has been primed but not painted and it doesn't sound like he intents to paint it. At this point it's most likely going to be up to me to deal with this part of the project. As I see it now, anything applied to the roof will a plus even if it's not the exact thickness that LS recommends.
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