
plating, anodizing, & finishing Q&As since 1989
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Hardcoat as a Dynamic Seal Surface
September 30, 2008
I plan on using hard anodize as a seal surface (mates with a lip seal on a rotary joint to retain low pressure lubricating grease.) Can I expect any wear/leakage issues with the hard anodize
Justin Smithproduct designer - Bismarck, North Dakota, USA
October 1, 2008
It should work very well, but you may want to consider lapping it to be certain it is smooth.

Jeffrey Holmes, CEF
Spartanburg, South Carolina
October 1, 2008
If the part is not flexed or mechanically abused in that area, it should work. (IE: the anodize is not damaged or cracked) This also assumes that there is not a thermal coefficient of expansion problem with dissimilar metals. Winters are cold in ND and summers can be really hot in the sun.
James Watts- Navarre, Florida
