"Chemical Machining" for Titanium plates

I have to chemically machine Titanium II and Titanium V plates. These plates have different thicknesses, ranging from 0,1 mm to 0,5mm.

Process is quite similar to those used for manufacturing electronic boards: a paint is applied on the metal, the shape of the piece/s is engraved with a laser, a chemical is applied to remove unwanted excess metal.

I am searching for a provider for the "paint" and the chemical.

Any clue?

Thanks!