DAS For Carbon Printing- Diazidostilbene Sensitizer

See thewetprint.co... for more information
4,4′-Diazidostilbene-2,2′-disulfonic Acid Disodium Salt Tetrahydrate CAS 2718-90-3, also known as DAS, is used as a less toxic alternative to dichromate in carbon, collotype, photogravure, casien, and PVA printing. Besides being less toxic, the most important advantage of
DAS over dichromate is stability. Dichromate-sensitized
emulsions suffer from the dark reaction before exposure
and the continuing action of light after exposure. These
reactions cause errors in calibration.

[@barriewatts127]

Thanks Calvin. Glad to see you’re up and about again. Take care of yourself.

[@ricardolb3987]

Qué alegría verte otra vez por aquí! Cuídate mucho

[@carbonprint]

Gracias :-)