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Need Steam Plate Coated

We have a process called Lubrite. what Lubrite does is adds a coating of Manganese Phosphate to our gear product to our customer. My question is that in order to Heat the coating solution we use steam plate in the neighborhood of 350 to 400 degree F. These plates gets so much residue build on them that we have to beat them with rubber mallet to get them loose and eventually destroys the plates and needs to be replaced. Is there something that we could spray on them or plate them with something that will prevent from build -up and at the same time would not contaminate the Phophate solution.

Thank you in advance,

Ash Youhanian
Gear and Axle - Glasgow, Kentucky, USA
2007

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I don't think you'll find a coating very satisfactory, Ash. Instead, replace your steel steam coils with electropolished stainless steel, which has no "tooth", and you will get less buildup and it will be easier to remove. If possible, reduce the steam pressure and make the coils larger ("derated").

Ted Mooney, P.E.
Striving to live Aloha
finishing.com - Pine Beach, New Jersey
2007

At that temperature, any material will build up solids. Polished and passivated or electropolished will help, but only until the crud starts to form. Ted's more surface area an lower temperature will help a lot.

James Watts
- Navarre, Florida
2007