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06-08-2007, 10:16 PM | #1 |
Registered User
Join Date: May 2007
Location: St. Louis
Posts: 110
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Sandblasting do's and dont's
again with another question! i will try to keep them to a minimum.
i am getting ready to sandblast a bunch of parts and i need to know if there is anything i cant blast or need to watch for.... example: 1) steering box? can i blast it? do i need to mask off certin parts 2) rear axle: any areas i need to stay away from? thanks again!
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1966 Chevy C-10 Fleetside Check out http://jcox.tumblr.com/ for progress updates! |
06-08-2007, 10:22 PM | #2 |
Rust Buster
Join Date: Apr 2007
Location: Lebanon, Ky
Posts: 558
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Re: Sandblasting do's and dont's
I blast my steering boxes with no trouble. Just stay away from the seals. The splines usually aren't rusted, so I recommend staying off of those as well. As with anything, afterwards clean, clean, clean! Good Luck - Jerry
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06-08-2007, 10:27 PM | #3 |
Rust Buster
Join Date: Apr 2007
Location: Lebanon, Ky
Posts: 558
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Re: Sandblasting do's and dont's
Sorry, I missed answering your whole question, The rear axle I normally take everything out before I would blast. Not a good area to chance getting sand in. Some do, at my shop I do not. Jerry
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06-10-2007, 01:47 PM | #4 |
New Member
Join Date: Mar 2007
Location: Houston,TX
Posts: 261
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Re: Sandblasting do's and dont's
Yes make sure that you remove all parts like glass and anything that will shatter. Anything that is smoothed metal such as a spindle you want to cover the smooth surface. Also remember to use a soft sand on the body parts such as "sugar sand". If you have bondo on the truck do not try to get it off if you are using sand. The metal might warp depending on how deep the spot is. And as stated before remove as much sand as possible when cleaning or you will have a painted truck with sand still coming out of crazy places lol.
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Anthony 63 chevy stepside SWB 57 chevy 2dr hrdtop belair |
06-11-2007, 09:55 AM | #5 |
Registered User
Join Date: Oct 2004
Location: Brantford
Posts: 35
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Re: Sandblasting do's and dont's
Hi
We industrial blast at the place I work for. Any areas that you don't want to have blasted wrap duct tape around it. Use 3 or 4 wraps and use will have no problems. Paul S |
06-13-2007, 12:42 AM | #6 |
60-66 Nut
Join Date: Mar 2007
Location: Coeur d'Alene, Idaho
Posts: 23,248
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Re: Sandblasting do's and dont's
A word of advise on sandblasting.....DON'T use silica sand. That used to be the material to use, but not anymore. Aside from airborne silica being extremely dangerous to breathe, the silica that becomes imbeded in the metal causes adverse reactions with current day primers, particulary epoxy primers. You could potentially ruin your new paint job by using silica sand
A better blast media to use is copper slag, which is black in color, or nickel slag which is greenish gray in color. |
06-13-2007, 03:19 AM | #7 |
Scrapper 1
Join Date: Jan 2007
Location: Riverside Calif
Posts: 1,649
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Re: Sandblasting do's and dont's
they have a new one out there is call Baking soda it takes off all paint and rust and leaves it clean and if you do a cab all you need to do is wash out the cab
with sand blast you will be picking sand out of that truck for ever |
06-13-2007, 07:11 AM | #8 | |
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Join Date: Apr 2005
Location: Pensacola, FL
Posts: 17,854
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Re: Sandblasting do's and dont's
Quote:
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Rob - https://www.instagram.com/hart_rod_c10 As Iron Sharpens Iron, So One Man Sharpens Another. Proverbs 27:17 FOR SALE: DBW pedal bracket - http://67-72chevytrucks.com/vboard/s...d.php?t=651123 FOR SALE: Hood Brackets http://67-72chevytrucks.com/vboard/s...d.php?t=679945 1987 Silverado SWB - 34.5K original miles http://67-72chevytrucks.com/vboard/s...d.php?t=801834 1969 SuperBurb - http://67-72chevytrucks.com/vboard/s...d.php?t=200387 1968 Farm truck - http://67-72chevytrucks.com/vboard/s...d.php?t=358692 1968 SWB - http://67-72chevytrucks.com/vboard/s...d.php?t=551258 1948 Chevy - http://67-72chevytrucks.com/vboard/s...=122164&page=3 |
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06-14-2007, 01:23 AM | #9 |
60-66 Nut
Join Date: Mar 2007
Location: Coeur d'Alene, Idaho
Posts: 23,248
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Re: Sandblasting do's and dont's
The imbedded silica that you can't get out of the pores of the metal can react with primers (such as epoxy primers) causing the primer to not stick to the metal. So consequently your paint could peal and flake off.
To my knowledge, PPG will not guatantee a paint job where the metal has been blasted with silica sand. I would not recommend using baking soda either. It is more difficult to get out of the cracks and crevaces than copper or nickel slag. Also the baking soda doesn't mix well with primer or paint. I'm sure some of you are skeptical about my claims, so I would suggest checking with the manufacturer of the primer and paint you plan to use and follow their recomendation. My claims are based on information from a good friend of mine that has been abrasive blasting for over 10 years. He does all of the blasting for most of our local auto restoration/customizing shops, and has also worked with the local PPG rep. I trust what he tells me and I was passing this along in hope of helping some of you avoid problems with your paint. Last edited by Captainfab; 06-14-2007 at 01:53 AM. |
06-14-2007, 07:42 AM | #10 | |
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Join Date: Apr 2005
Location: Pensacola, FL
Posts: 17,854
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Re: Sandblasting do's and dont's
Quote:
R
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Rob - https://www.instagram.com/hart_rod_c10 As Iron Sharpens Iron, So One Man Sharpens Another. Proverbs 27:17 FOR SALE: DBW pedal bracket - http://67-72chevytrucks.com/vboard/s...d.php?t=651123 FOR SALE: Hood Brackets http://67-72chevytrucks.com/vboard/s...d.php?t=679945 1987 Silverado SWB - 34.5K original miles http://67-72chevytrucks.com/vboard/s...d.php?t=801834 1969 SuperBurb - http://67-72chevytrucks.com/vboard/s...d.php?t=200387 1968 Farm truck - http://67-72chevytrucks.com/vboard/s...d.php?t=358692 1968 SWB - http://67-72chevytrucks.com/vboard/s...d.php?t=551258 1948 Chevy - http://67-72chevytrucks.com/vboard/s...=122164&page=3 |
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