Copper Sulfate – Saline Etch for Aluminum – Test 22: Mirror Step Test in Revived Bath

Name: Nick Osetek & Tessa Chambers                                                 Date: 6/12/2018

Room Temperature: 73*F                                                                    Humidity etc: Dry

Experiment Title: Mirror Step Test in Revived Bath

Experiment Goal: To test our newly revived bath and to test the strength of the bath with a time test. Also we wanted to retest the mirror quality 5052.

Plate material: Aluminum 5052 (Mirror)

Plate Preparation: Soaked in a soy sauce bath, then degreased with 7th Generation spray.

Evaluation of Plate Preparation: Plate wasn’t degreasing as well in the soy sauce soak compared to our last mirror 5052 test.

Etching Bath Notes: Copper started lifting quickly after submerging the plate.

Time in bath10 sec, 30 sec, 1 min, 3 min, 5 min

After Bath Evaluation: Normal

Removal of Grounds: N/A

Inking Methods: Bone black, 10% Burnt Plate Oil 00

Paper Type: Hahnemuhle Copperplate

Soaking Time: 15 min

Press, blanket set up, pressure: Praga press, 2 catchers, 6/8, 6/8

Conclusions: When compared to to our previous mirror step test (5/24/2018) the results were a tad lighter, but still accurate and fairly consistent.

Mirror 5052 step test. Top to bottom: 0 sec, 10 sec, 30 sec, 1 min, 3 min, 5 min

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