Sound technical content, curated with aloha by
Ted Mooney, P.E. RET
Pine Beach, NJ
The authoritative public forum
for Metal Finishing since 1989
-----
Allowable Discoloration
2005
I have some heat sinks made from 6061 T5 that my plater claims is discolored (bronze and dull blue) due to the material. Another plater told me it is due to the parts not being washed correctly or improper timing of the chromate and anodizing.
What discoloration is allowed per
MIL-A-8625 / MIL-PRF-8625
[on DLA] ?
- MIllis, Massachusetts
2005
Diane
If you provide more information about what your part/coating requirements are, and what you are actually receiving, you can get better responses.
On 6061-T5, black should appear black. If you specify any other color, you should allow for a range of acceptable shades.
Please let us know more.
- Colorado Springs, Colorado
(No "dead threads" here! If this page isn't currently on the Hotline your Q, A, or Comment will restore it)
Q, A, or Comment on THIS thread -or- Start a NEW Thread
Q, A, or Comment on THIS thread -or- Start a NEW Thread