[Ralphy]

We use a lot of plasma coatings at work. We have our own spray shop. The header pic coating to me looks very similar to a jet engine combustion chamber coating, off white. I'm not sure what the formula is. The term we use for these coatings is thermal barrier. When the engines come back in for rebuild the coatings look yellow and burned. The texture is a bit rough and may I add porous. If you touch a newly sprayed part with dirty hands the dirt is absorbed into the surface easily. Most parts we rework will get a final cleaning and they do clean up. However I'm not sure what type of cleaning fluids are used and if you could clean at home.

Parts before thermal barrier spray should/must be blasted to give the spray something to cling to. Rarely does this coating chip. Some of the other build up coatings can chip easily. Thought I would throw it out there.

Ralphy