Black film deposit on articulators

[eddydy]

Hello
I soaked some of my articulators in a mixed CLR/ water solution to clean them from plaster residues, left them in the solution for few hours, after removing them out, they all had a black deposit film that's not easy to wash off even with soap.
Anyone ran into this situation and maybe has a solution for it??
Thanks

Imad

 

[zero_zero]

The lactic acid from CLR reacted with the articulator material ? If so try something tougher than just soap...

 

[Affinity]

You tarnished or oxidized them.. Probly ate away the electroplating on it.. Dont think there any saving that without another chemical reaction or some kind of polish or electroplating.

 

[2thm8kr]

Hello
I soaked some of my articulators in a mixed CLR/ water solution to clean them from plaster residues, left them in the solution for few hours, after removing them out, they all had a black deposit film that's not easy to wash off even with soap.
Anyone ran into this situation and maybe has a solution for it??
Thanks

Imad

I use WD-40. Spray on the articulators and let sit in the sink for a while. Denture brush and soap, plaster comes right off.

 

[eddydy]

thank you all.