Best procedure/process/materials for painting a roll cage/race car interior?
05-20-2010, 06:26 PM
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Re: Best procedure/process/materials for painting a roll cage/race car interior?
That's usually a type of specialty ultrasound. The way those thickness gauges work is by measuring the impedance mismatch between the steel and the air. It travels through the steel, reflects off of the interface between the steel and air, and returns to the instrument, and the phase shift and/or travel time is measured to calculate the thickness.
Layers of paint of different polymer density or with different types of filler/pigment can cause problems because of the impedance differences too, which is why that can interfere with the wall thickness readings. The way I understand it, the big problem is mostly the overall thickness of the paint, not that there are multiple layers. Multiple layers usually just mean a lot of overall paint buildup...
On a loosely related side note, the early (higher powered) medical ultrasounds would have to be moved around constantly. If you were scanning on someone's torso, and the ultrasound probe was held in one spot, you could burn someone's back (the other side of the torso). The impedance mismatch creates a lot of power dissipation where the skin meets the air. I used to work at a sonar company for an engineer who was a medical ultrasound pioneer, I have lots of interesting trivia rattling around..
Layers of paint of different polymer density or with different types of filler/pigment can cause problems because of the impedance differences too, which is why that can interfere with the wall thickness readings. The way I understand it, the big problem is mostly the overall thickness of the paint, not that there are multiple layers. Multiple layers usually just mean a lot of overall paint buildup...
On a loosely related side note, the early (higher powered) medical ultrasounds would have to be moved around constantly. If you were scanning on someone's torso, and the ultrasound probe was held in one spot, you could burn someone's back (the other side of the torso). The impedance mismatch creates a lot of power dissipation where the skin meets the air. I used to work at a sonar company for an engineer who was a medical ultrasound pioneer, I have lots of interesting trivia rattling around..
05-20-2010, 06:29 PM
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Re: Best procedure/process/materials for painting a roll cage/race car interior?
Sometimes I just happen to know a few things by complete coincidence. What do sonar, ultrasound, and cars have in common? Pretty much nothing unless you're doing UTM (ultrasonic thickness measurement) on something like a roll cage... This is one of those rare times when something actually crosses over from one thing to another. LOL..
Last edited by Fabrik8; 05-20-2010 at 06:31 PM.
05-20-2010, 06:29 PM
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Re: Best procedure/process/materials for painting a roll cage/race car interior?
brian your best bet is to rattle can it...if you try to use a compressor/spray gun you will have paint everywhere...
with a rattle can you can get it in tight places without getting it everywhere,
unless the cars gutted or the cage is removable then thats what i would do...if it is removable then take and get it powdercoated...
with a rattle can you can get it in tight places without getting it everywhere,
unless the cars gutted or the cage is removable then thats what i would do...if it is removable then take and get it powdercoated...
05-20-2010, 07:15 PM
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Re: Best procedure/process/materials for painting a roll cage/race car interior?
Touch-up spray gun? Small fan pattern, good control, just like a rattle can...
05-20-2010, 07:19 PM
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Re: Best procedure/process/materials for painting a roll cage/race car interior?
yes but if he doesnt have all that...by the time he buys it....oh wait this is brian(10corvettesinthedriveway) were talking about...
hes fine..if he dont have it he will get it..
hes fine..if he dont have it he will get it..
05-20-2010, 07:33 PM
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Re: Best procedure/process/materials for painting a roll cage/race car interior?
I see a complete (but low budget) downdraft spray booth built in the garage by the time this is done.
05-21-2010, 05:25 AM
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Re: Best procedure/process/materials for painting a roll cage/race car interior?
LOL I have no intentions of building a spraybooth setup in my garage.... that's what Gary's Vettebarn is for 
The car would be 100% gutted.... race car only.
The car would be 100% gutted.... race car only.
05-21-2010, 05:45 AM
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Re: Best procedure/process/materials for painting a roll cage/race car interior?
If it's gutted and no masking required, I would just use a normal spray gun with something that doesn't require to many coats, acyrilic enamal perhaps. as with any paint, prep is the key, but all those nooks and crannies will be difficult to get too. You can aply good prep to the areas that will stand out, which will also be the easiest to get too, just make sure you wipe it all down clean before you spray. If it's still bare steel, I would hit it with some sort of metal etch primer first. Also, be mindful of the color, you don't want any color that will be distractful to the driver if the sun hits it right. We used to do the Winston Cup car in a semi gloss medium grey color, the whole interior, floor pans roll bars ect...
Just have the seat covered in Whale Penis leather, I've heard it helps hold the driver tight...
Just have the seat covered in Whale Penis leather, I've heard it helps hold the driver tight...
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