MORTENSEN PIGMENT PROCESS NOTES
Hot press -- O one coat, 6 drops to 1-1/2.
1 to 3 oz. Gel. heat to 120 °
Immediately apply with small
nylon brush as usual. Add 3
drops formaldehyde to each 1-1/2 oz.
gelatin. Sweep with large
nylon until total matt is obtained.
Note: This will work only
on 140-3-Hot Press paper.
Courtesy of the Robert Balcomb Collection