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What is the coating on aluminum cast motor/pump bodies

What is the dark coloured coating usually applied on the inner and outer surfaces of a die-cast aluminum motor or pump body? The coating is resistant to heat generated during the operation of the motor/pump.

Timur Ulucak
aluminum extrusions & finishing - Istanbul, Turkey
2005

Sounds like hardcoat anodizing to me.

Ted Mooney, P.E.
Striving to live Aloha
finishing.com - Pine Beach, New Jersey
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2005

2005

Timur

Contact the pump or motor manufacturer's tech support department and they probably can help you out.

Are you just curious, or do you have an application for a comparable coating?

Willie Alexander
- Colorado Springs, Colorado

Sorry! Finishing.com is temporarily Read-Only.
Ted Mooney is retiring but I have several offers to take it over.
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