DC Blue has a 12 month shelf life without the addition of diazo and 1-month shelf life once diazo is mixed in the emulsion. (Diazo Included). ® DC Blue Screen Printing Emulsion (Quart - 32 Oz.). Diazo Required Photo Emulsion for Silk Screens and Fabric- for Screen Printing Plastisol Ink and Screen Printing Kit, Screen Printing Supplies.
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