Curated with aloha by
Ted Mooney, P.E. RET
The authoritative public forum
for Metal Finishing 1989-2025
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DOES A YELLOW DAB OF PAINT ON A FINISHED PART MEAN ANYTHING ABOUT THE FINISH?
MY COMPANY PURCHASED A FEW BLACK ANODIZED ELECTRICAL CONNECTORS AND EACH OF THEM HAD WHAT LOOKED LIKE WHERE SOMEONE TOOK A Q-TIP AND DABBED A SMALL BLOB OF YELLOW PAINT ON THEM. I AM THINKING THIS MAY HAVE SOME SIGNIFICANCE TO THE CONNECTOR ITSELF BUT WANTED TO CHECK WITH EVERYONE HERE TO SEE IF IT COULD PERTAIN TO THE FINISH.
Janet L. GardnerQuality Inspector - Eufaula, Alabama
2007
To my knowledge there are no standards on this so my guess is it was simply an internal coding system for the manufacturer.
Ted Mooney, P.E.
Striving to live Aloha
finishing.com - Pine Beach, New Jersey
2007
Black anodizing and electrical connector are not compatible in my book, so I will guess that they have a clear chromate spot or spots on them. Since it is very difficult to tell a clear chromated part from a non chromated part, I think the paint spot is their method of knowing that the part was actually chromated. If they had a problem in the past or a customer in the past, it seems reasonable. Ask them! If you do not want the yellow spot, specify it in the PO.
James Watts- Navarre, Florida
2007
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