The chemicals used in this process are water soluble iron salts. Set up 2. Expose to sunlight 3. Remove designs 4. Finished print after rinsing A white surface will produce a blue and white print, a fuchsia surface will produce a purple and fuchsia print, a yellow surface will produce a green and yellow print.
All blueprints can be brown-toned with a tea bath.
We recommend no additional rinses to fix the print other than water. This process is non-toxic. Our treated products conform to the art materials safety code, ASTM D4236, and they come with brown-toning, care and washing instructions.