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Ted Mooney, P.E. RET
Pine Beach, NJ

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May I decoat pvd?

Someone knows how to decoating TiN, CrN, ZrN, TiCN and ZrCN using acids? May you send me the chemical formula & the parts of acid in solution?

Thank you a lot and excuse me for my English.

Luca Visintin
- Gorizia, Italia

Luca,

Search through this site, there are several letters covering the issue. If it is TiN from steel, 30%NaOH and 10%H2O2 plus water will strip it slowly but without attack to steel. Take care because heat and gas is produced when mixing.

Guillermo Marrufo
Monterrey, NL, Mexico

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