I saw something about a substitute for HFl on the Orchid Digest and wondered whether you would be willing to share what the proportions are of Sodium fluoride to HCl for etching titanium...
Sodium Flouride powder 20g
distilled water 380ml approx
Hydrochloric acid 100ml
- mix the sf powder with a little of the water til dissolved
- add the rest of the water
- then add the acid.
B r i a n A d a m J e w e l l e r y E y e w e a r
@Brian_Adam1 ph/fx +64 9 817 6816 NEW ZEALAND