Sandblasting 1969 Z28 Camaro "Steel" Rally Rims - Team Camaro Tech
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post #1 of 7 (permalink) Old Oct 18th, 11, 12:18 PM Thread Starter
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Question Sandblasting 1969 Z28 Camaro "Steel" Rally Rims

I am having my Rally wheels sand blasted outside and inside the rims. The price is good at $20.00 each and the service provider is well known. He sandblasts with coal slag and says it works well.

I'm concerned about the coarseness of the metal when the old paint is removed; especially the mounting surfaces for the tires.

All thoughts on the use of coal slag blasting and the surface area coarseness where the tires will seal against against the rims will be welcomed!


Thanks;

John Lighthart
Charleston, SC
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post #2 of 7 (permalink) Old Oct 18th, 11, 12:41 PM
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Tom
 
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Re: Sandblasting 1969 Z28 Camaro "Steel" Rally Rims

I've blasted a few metal brackets, bolts, hoodsprings, intakes and such with my 1 hp compressor and $10 swap meet sandblaster using coal slag (aka black beauty) with no problems left on the surface of the parts. I've used coarse and fine black beauty with good results. Use the fine if you are concerned. I think you will have no problems. Rally wheels should clean up pretty easily.

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post #3 of 7 (permalink) Old Oct 18th, 11, 01:06 PM
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Wink Re: Sandblasting 1969 Z28 Camaro "Steel" Rally Rims

Depends on the grit of "sand" they use and how big the gorilla doing the spraying is ...
Some shops that tend to do big/rusty jobs are used to using pretty aggressive grits and may not have a 'lite' option available when blasting.
I would opt for "media" (walnut shells/coal slag/corn/plastic/glass) over "Sand" in most cases where I wanted a smoother surface 'tooth' for painting and sealing.

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post #4 of 7 (permalink) Old Oct 19th, 11, 12:22 AM
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Re: Sandblasting 1969 Z28 Camaro "Steel" Rally Rims

I used a process called wheel abratting on my rally wheels, then had them powder coated. Media should always be a concern. There are many options available to you depending on the finish you want. John suggested different media. Here are some links explaining the various types of media options.

http://www.kramerindustriesonline.co...ting-media.htm

http://www.blastingaccessories.com/a...teel-shot.html

http://en.wikipedia.org/wiki/Abrasive_blasting

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post #5 of 7 (permalink) Old Oct 19th, 11, 04:22 AM
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BARRY ALLAN
 
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Re: Sandblasting 1969 Z28 Camaro "Steel" Rally Rims

HI it will not hurt the rim 20 each thats a gift
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post #6 of 7 (permalink) Old Oct 19th, 11, 08:59 AM Thread Starter
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Thumbs up Re: Sandblasting 1969 Z28 Camaro "Steel" Rally Rims

Thank you for all those who responded to my sandblasting inquiry

John Lighthart
Charleston,SC
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post #7 of 7 (permalink) Old Oct 19th, 11, 12:02 PM
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jason
 
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Re: Sandblasting 1969 Z28 Camaro "Steel" Rally Rims

we quit using black beauty on enything but the worst rust. it leaves an oily firm that has to be cleaned before paint. i would use unimin silaca sand smooth clean blow them off and paint.
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