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01-09-2003, 10:53 AM
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CC Member
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Join Date: Jun 1999
Location: Bay Area,
FL
Cobra Make, Engine: What Cobra?
Posts: 7,193
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Not Ranked
Sand blasting!!
I want to finish a Ford Tunnel Wedge aluminum intake. I want to media blast it, but what little experimentation I have done does NOT give me the correct finish.
I don't wnt it to look polished or, smoothed out.It keeps coming out like it has a satin finish.
I am trying to achieve the same coarse finish that would be on this intake when it was brand new.
Anyone out there who can recommend the correct media to use for such a finish?
Thanks
TURK
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OBAMA IN in 2012
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01-09-2003, 11:00 AM
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CC Member
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Join Date: Jul 2002
Location: Greenville,sc,
SC
Cobra Make, Engine: Kirkham 427 (KMP 266); CAV GT40
Posts: 1,464
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Not Ranked
Glass bead. chuck
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01-09-2003, 11:13 AM
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CC Member
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Join Date: Jun 1999
Location: Bay Area,
FL
Cobra Make, Engine: What Cobra?
Posts: 7,193
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Not Ranked
chuck,
Is it any particular grade of glass bead. Is there only one kind.?
Thanks
TURK
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OBAMA IN in 2012
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01-09-2003, 11:28 AM
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CC Member
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Join Date: May 2002
Location: Right in the middle of the beautiful Texas Hill Country - Boerne, Texas,
Posts: 681
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Not Ranked
I agree...glass bead. I had a local machine shop do my intake for $25.00...took 1 day.
__________________
"They're lining up on both sides of the ocean..
and nobody's willing to compromise
in the search for the smoking gun..."
"Charlie Don't Surf!"
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01-09-2003, 11:38 AM
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Senior Club Cobra Member
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Join Date: Mar 2002
Location: God's country,
ME
Cobra Make, Engine: Original ERA 427sc, Powered by Gessford
Posts: 2,678
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Not Ranked
__________________
Replica is not a dirty word.
"If you can't be a good example, then you'll just have to be a horrible warning."
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01-09-2003, 11:45 AM
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CC Member
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Join Date: Mar 2002
Location: so cal,
Cal
Cobra Make, Engine: I used to fix them for a living
Posts: 2,563
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Not Ranked
Glass beading is what I have done to my own aluminum intakes, but they get very dirty very easily now. Their appearance is not exactly factory original either, it is more satin. There are companies that restore aluminum intakes to their original appearance, check in Hemmings for them.
__________________
In a fit of 16 year old genius, I looked down through the carb while cranking it to see if fuel was flowing, and it was. Flowing straight up in a vapor cloud, around my head, on fire.
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01-09-2003, 12:31 PM
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Club Cobra Member
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Join Date: Jul 2002
Location: Huntington Beach, CA,
CA
Cobra Make, Engine: Kirkham 482 ci alum block
Posts: 250
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Not Ranked
Turk,
I have a couple of blast cabinets at my shop and glass bead is not coarse enough for the finish I think you are looking for. Try aluminum Oxide 80 grit. Try that on a sample piece of aluminum and if that is to coarse try a little finer. We blast a lot of aluminum for painting and Anodizing.
David
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01-09-2003, 12:32 PM
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CC Member
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Join Date: Mar 2001
Location: Wallingford, Ct.,
Posts: 154
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Not Ranked
Turk I agree that glass beading is close to the look your looking for but it will get dirty and you will not be able to clean it. I did a resto on a 62 fuel inj. vette and had the same issue. First we blasted it with glass, then using a custom blend of mathews paint we match an acrylic polyurethane enamel to it, then we top coated it with 80 percent gloss clear. You couldn't tell it from the origanal peice and cleaned up easy for the shows.
Ron
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01-09-2003, 01:44 PM
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CC Member
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Join Date: Jul 2002
Location: Greenville,sc,
SC
Cobra Make, Engine: Kirkham 427 (KMP 266); CAV GT40
Posts: 1,464
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Not Ranked
Turk,you might try satin clear coat(eastwood or satin powder coat when you get the finish you want. chuck
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01-09-2003, 02:57 PM
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Senior Dragontamer
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Join Date: Dec 2001
Location: Alvin,
TX
Cobra Make, Engine: Kirkham, 427 S/O
Posts: 271
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Not Ranked
Turk,
Try Eastwood's Alumablast paint after media blasting.
Jeff
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