Sound technical content, curated with aloha by
Ted Mooney, P.E. RET
Pine Beach, NJ
The authoritative public forum
for Metal Finishing since 1989
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Surface of aluminum carts powdering
We are experiencing a white powder on the surface of our aluminum hospital carts which are washed with neutral chemicals in moderately hard city water at 180* for 1.5 minutes.Carts are not hard anodized.
Dick FlynnMfgr. - Toronto,ON,Canada
September 22, 2009
September 23, 2009
Hi, Dick. Saying that they are not hard anodized still leaves a lot of room for what the finish is :-)
Regards,
Ted Mooney, P.E.
Striving to live Aloha
finishing.com - Pine Beach, New Jersey
October 13, 2009
Ted,
The anodizing on the carts is sulfuric, @60 °F 30 to 40 microns film thickness.
George
- Kingston, ON Canada
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