The purpose of this series of tests was to see if mixing Whiting with burnt plate oil #000 or Hanco Transparent Base Extender would achieve a base similar to Faust Q699.
Date: April 24, 2014
Researchers’ Names: Mike Barrett and Angela Zammarelli
Room Temperature: 64 degrees AM, 66 degrees PM
Materials: Hanco Tint Base Extender, Burnt Plate Oil #000, Whiting, and Magnesium Carbonate (MgCO3)
Stage I: Hanco Tint Base Extender and Whiting
Mix 1: 1 tsp. Hanco Tint Base Extender : 1/2 tsp. Whiting.
The Hanco t-base and Whiting stiffened quickly when mixed together. Less sticky than the Hanco and MgCO3 mix but stickier than Faust. A very long and runny mixture that lacked in body and was oily. No visible traces of particulate like we observed with the MgCO3 mixes.
Mix 2: 1 tsp. Hanco : 1 tsp. Whiting.
Mixed together well. Became stiff and sticky. Had a firm viscosity. Held shape better than Mix 1. Very long, stretches with no breaks.
Stage II: Burnt Plate Oil #000 and Whiting
Mix 3: 1 tsp. plate oil #000 : 1/2 tsp. Whiting.
Felt loose while mixing. A smooth and very long mixture lacking in body with a loose viscosity and overall oily feel.
Mix 4: 1 Tsp plate oil #000 : 1 tsp. Whiting.
Firmed up faster than Mix 3 while mixing. Still pretty smooth and very loose. This mix did not achieve a comparable viscosity to what the Hanco and Whiting mixes had.
Mix 5: 1 Tsp plate oil #000 : 1 1/2 tsp. Whiting.
Really stiff. Had a “rubbery-buttery” feel with a stiff viscosity. Still long medium, but not as long as Mix 3 and 4. When it broke it fell in clumps and wouldn’t hold to the palette knife.
Stage III: Hanco, Whiting, and MgCO3
Mix 6: 1 tsp. Hanco : 1/4 tsp. whiting : 1/4 tsp. MgCO3
Took a bit to mix the powders, they seemed to make a barrier around the Hanco. Still oilier than Faust but with a buttery feel. Adding MgCO3 may have alleviated the rubbery feel present in the Whiting-only mixes. The MgCO3 still left speckles in the Hanco while the Whiting dissolved completely. Still very long.
Mix 7: 1 tsp. Hanco : 1/2 tsp. whiting : 1/4 tsp. MgCO3
Became rubbery, determining Whiting as the ingredient responsible for that outcome. Very firm viscosity, like hot chewing gum on pavement. This mixture could be useful with Letterpress or relief ink.
Stage IV: Burnt Plate Oil #000, Whiting, and MgCO3
Mix 8: 1 tsp. plate oil #000 : 1/4 tsp. Whiting : 1/4 tsp. MgCO3
Created a loose, oily, runny, and long medium that had no real body.
Mix 9: 1 tsp. plate oil #000 : 1/2 tsp. Whiting : 1/4 tsp. MgCO3
Still very runny with no real body, almost “soupy.” Would wipe off a plate too easily.
Mix 10: 1 tsp. plate oil #000 : 3/4 tsp. Whiting : 1/4 tsp. MgCO3
Started to get rubbery. Had more body than Mix 8 and 9 with a buttery feel. Still very loose and long.
Mix 11: 1 tsp. plate oil #000 : 1 tsp. Whiting : 1/4 tsp. MgCO3
This mixture had a rubbery/buttery feel. It appeared we reached the oil’s saturation point as the powders were not dissolving completely.
Mix 12: 1 tsp. plate oil #000 : 1 1/2 tsp. Whiting : 1/2 tsp. MgCO3
This combination achieved a good body with a stiff viscosity and short quality. It was not as buttery as faust, but had a “honey butter” feel.
We decided that we did not want to pursue any more mixtures using the Hanco Tint Base Extender. We wanted to move on and do print tests using Mix 5, 11, and 12.
Plate Material: Copper
Ink: Graphic Chemical & Ink Co. Process Blue
Press Setting: 5.5
Paper: Hanemeuhle Copper Plate
Draw Down Tests: We only did draw down tests for the three Burnt Plate Oil #000 and Whiting mixtures with a dab of ink. We abandoned the Hanco Transparent Base and Whiting mixtures.
Print 1: Mix 12 (1 tsp. Burnt Plate Oil #000 : 1 1/2 Whiting : 1/2 MgCO3) : dab of ink
Carded onto plate nicely soaking into aquatint areas beautifully. The ink color appeared to print grayer than the color out of the can which lead us to believe oxidation was happening.
Print 2: Mix 5 (1 tsp. Burnt Plate Oil #000 : 1 1/2 Whiting)
Even with no ink present the plate printed a light gray green color. This told us that this transparent base oxidizes with the copper plate and will modify ink color substantially.
Print 3: Mix 5: dab of ink
Print 4: Mix 11 (1 tsp. Burnt Plate Oil #000 : 1 Whiting : 1/4 MgCO3) : dab of ink
Conclusions: As the prints above show, Whiting as part of the transparent base caused the plate to oxidize, modifying the ink color substantially. We wanted to see if we could avoid using Whiting in our future mixes to be able to maintain truer colors when printing.