Name: Nick Osetek & Tessa Chambers Date: 6/14/2018
Room Temperature: 73*F Humidity etc: Dry
Experiment Title: Depleted Bath Revival #2
Experiment Goal: To kill and revive our 5-gallon bath again with 762 g of copper sulfate and 762 g of salt. Then retest the bath’s strength after revival.
Plate material: Aluminum 5052
Plate Preparation: Buffed with steel wool, degreased with Bon Ami and soy sauce, backed with contact paper
Evaluation of Plate Preparation: Normal
Etching Bath Notes: Before Revival: Bath was clear with copper sludge build up on the bottom.
After adding Copper Sulfate: We added 762 g, and the bath turned teal/aqua.
After adding Salt: We added 762 g, and then the bath turned emerald green.
Time in bath: 5 minutes
After Bath Evaluation: The bath was still mossy emerald green.
Removal of Grounds: N/A
Inking Methods: Bone black, 10% Burnt Plate Oil 00
Paper Type: Hahnemuhle Copperplate
Soaking Time: 1 hour
Press, blanket set up, pressure: Praga press, 2 catchers, 1/8, 1/8
Conclusions: Our 5-minute print was consistent with our past 5-minute tests, almost black. Meaning that revival was successful.