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Photographers' Formulary Casein Printing Kit

BH #PHCSPK • MFR #07-0106
Photographers' Formulary
Photographers' Formulary Casein Printing Kit
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Available for store pickup in 7-14 business days
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Important Notice

  • This item is noncancelable and nonreturnable.
  • This item is not available for purchase online. Please call us at 800.606.6969, or visit our NY Superstore.

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Photographers' Formulary 07-0106 Overview

The Casein Printing Kit from Photographers' Formulary contains pre-measured amounts of the chemicals needed, as well as red, yellow, and blue watercolors, to produce approximately twenty 8 x 10" tri-color gum prints.

Casein is a colloid derived from milk, and when used for printing, the process follows a traditional gum printing method: the colloid is mixed with a light-sensitive dichromate and watercolor, brushed onto paper, and exposed underneath a negative using UV light. After exposure, the light will harden the casein in the thinner regions of the negative and the areas receiving less exposure will wash away in a water bath. For each print this exposure and development process is done multiple times, particularly when making tri-color prints that require separate red, yellow, and blue exposures.


This kit contains pre-measured amounts of the following chemicals for producing approximately twenty 8 x 10" prints.
  • Potassium dichromate
  • Ammonium caseinate
  • Sodium benzoate
  • Red, yellow, and blue watercolors

Photographers' Formulary 07-0106 Specs

Photographers' Formulary 07-0106 Reviews

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