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| Rotary Tech - General Rotary Engine related tech section.. Tech section for general Rotary Engine... This includes, building 12As, 13Bs, 20Bs, Renesis, etc... | 
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|  03-05-2009, 10:52 PM | #12 | 
| RCC Addict Join Date: Mar 2008 Location: Honolulu, Hawaii USA 
					Posts: 1,813
				Rep Power: 19  | 
			
			I've never seen anodizing appear like that. I've never heard of any anodizing internal engine parts. I've never heard of anyone anodizing steel / iron - only aluminum? I don't think the rotors are aluminum. Cadmiun perhaps? SAE papers claims it's a special coating for oil adhesion. It's on the rotors faces + on the outside edges of the rotor from the side seal groove to the edge of the rotor faces. -Ted | 
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