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shortride
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Joined: October 10, 2010
Posts: 1323
Location: Oklahoma
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a.wilson
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Joined: January 11, 2007
Posts: 2033
Location: Georgia
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raygreenwood
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Joined: November 24, 2008
Posts: 21520
Location: Oklahoma City
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 Posted: Tue Apr 07, 2015 10:36 am Post subject: |
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What type of part? Nuts and bolts...or calipers?
You can rough it up (scotch brite) and it will hold aggressive paints well after carefully degreasing.
Or you can strip it with hydrochloric acid. Start with 50/50 water acid and work your way up. It eats cadmium. Only strip as long as it takes. If these are really hard critical fasteners....you may get surface hydrogen embrittlement so be careful.
Neutralize in water and baking soda, rinse well, dry well, paint fast.
Do not sandblast. The CAD plating is toxic when breathed. Ray |
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shortride
Samba Member
Joined: October 10, 2010
Posts: 1323
Location: Oklahoma
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| Posted: Tue Apr 07, 2015 10:40 am Post subject: |
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| raygreenwood wrote: |
What type of part? Nuts and bolts...or calipers?
You can rough it up (scotch brite) and it will hold aggressive paints well after carefully degreasing.
Or you can strip it with hydrochloric acid. Start with 50/50 water acid and work your way up. It eats cadmium. Only strip as long as it takes. If these are really hard critical fasteners....you may get surface hydrogen embrittlement so be careful.
Neutralize in water and baking soda, rinse well, dry well, paint fast.
Do not sandblast. The CAD plating is toxic when breathed. Ray |
Non automotive flat piece of 14 gauge metal about 24 inches long and 12 inches wide.
_________________
Pearl White 1966 Sedan
Retired US Army - 21 years 11B40, 173rd Airborne Brig. - Vietnam Combat Veteran |
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