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01-31-2008, 04:47 PM
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Join Date: Jul 2005
Location: Detroit, MI
Posts: 1,587
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Cadmium risk?
Is it only my imagination or was there a whiff of very fine cadmium powder dispersed each time I squeezed a rivet?
Links Between Prostate Cancer, Cadmium And Zinc Investigated
January 31, 2008 ? Cadmium exposure is a known risk factor for prostate cancer, and a new study suggests that zinc may offer protection against cadmium. Zinc stimulates production of a protein that binds cadmium ... > full story
__________________
H. Evan's RV-7A N17HH 240+ hours
"We can lift ourselves out of ignorance, we can find ourselves as creatures of excellence and intelligence and skill. We can be free! We can learn to fly!" -J.L. Seagull
Paid $25.00 "dues" net of PayPal cost for 2015, 2016, 2017 and 2018 (December).
This airplane is for sale: see website. my website
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01-31-2008, 05:49 PM
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Join Date: Nov 2006
Location: Oklahoma
Posts: 669
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Quote:
Originally Posted by hevansrv7a
Is it only my imagination or was there a whiff of very fine cadmium powder dispersed each time I squeezed a rivet?
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Man you just burst my bubble! I thought that little whiff of "smoke" was caused by my powerful forearms crunching them little critters so fast. 
__________________
Joe Schneider
RV-7, IO-360, BA Hartzell, N847CR
Flying since 2008
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01-31-2008, 06:17 PM
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Join Date: Jan 2005
Location: 57AZ - NW Tucson area
Posts: 10,011
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Alodine!
Quote:
Originally Posted by hevansrv7a
Is it only my imagination or was there a whiff of very fine cadmium powder dispersed each time I squeezed a rivet?
Links Between Prostate Cancer, Cadmium And Zinc Investigated
January 31, 2008 ? Cadmium exposure is a known risk factor for prostate cancer, and a new study suggests that zinc may offer protection against cadmium. Zinc stimulates production of a protein that binds cadmium ... > full story
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I hope not, since cadmium is a surface treatment for steel parts, not the aluminum of our rivets.
The rivets are conversion coated, which is alodine.
Rivet spec here.
http://www.av8design.com/Hardware/MS20470.pdf
Alodine info here...
http://en.wikipedia.org/wiki/Chromat...ersion_coating
gil A
Now you might be breathing a puff of a chromium derivative.... 
__________________
Gil Alexander
EAA Technical Counselor, Airframe Mechanic
Half completed RV-10 QB purchased
RV-6A N61GX - finally flying
Grumman Tiger N12GA - flying
La Cholla Airpark (57AZ) Tucson AZ
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01-31-2008, 07:31 PM
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Join Date: Oct 2006
Location: Melbourne, Australia
Posts: 426
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Quote:
Originally Posted by az_gila
Now you might be breathing a puff of a chromium derivative.... |
...and inhaling hexavalent Chromium is the worst possible means of exposure. Should we wear respiratory protection when squeezing? |
02-01-2008, 03:47 PM
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Join Date: Jul 2005
Location: Detroit, MI
Posts: 1,587
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Thanks
Quote:
Originally Posted by az_gila
I hope not, since cadmium is a surface treatment for steel parts, not the aluminum of our rivets.
The rivets are conversion coated, which is alodine.
...
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Thanks for the correction. Dumb me; the color is about the same...
__________________
H. Evan's RV-7A N17HH 240+ hours
"We can lift ourselves out of ignorance, we can find ourselves as creatures of excellence and intelligence and skill. We can be free! We can learn to fly!" -J.L. Seagull
Paid $25.00 "dues" net of PayPal cost for 2015, 2016, 2017 and 2018 (December).
This airplane is for sale: see website. my website
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