Wash Ground Test 2

Test Summary
In this experiment I diluted Lascaux Wash Resist with various amounts of water. I am determining if thinning the Lascaux down will give a reticulation effect across the copper plate’s surface similar to water color.

Date: April 18, 2008
Researcher’s Name: Jos Truitt
Plate Material: .032 Copper
Plate Size: 5 in x 5 in

Plate Preparation
The plate was degreased with a mixture of Bon Ami and water. The plate was then rinsed with clean water and towel dried to prevent oxidation. The experiment consists of five lines of Lascaux Wash Resist painted unto the plate with a brush. First I applied an undiluted bead of Lascaux Wash Resist and allowed this to air dry. Second I applied a bead of water to the copper plate and dropped Lascaux Wash Resist into the bead of water. Third I applied a bead of undiluted Lascaux Wash Resist onto the plate and dropped water into the undiluted Lascaux. My fourth line was a 50/50 mixture of Lascaux and water that I applied directly to the copper plate. Finally I applied a bead of water to the plate and placed three dashes of Lascaux through the bead of water. The print is numbered to correspond with each of the marks that I applied. In used Z-Arcyl Stop Out on the top half of the copper plate and Z-Acryl Hard Ground Emulsion to create an aquatint on the bottom half. I allowed the plate to air dry for 15 minutes.

Etching Notes
The plate was etched in a vertical etching tank of Ferric Chloride at 38° Baume.

Timed Application of Mordant
40 Minutes

Removal of Grounds
Used Lascaux 2098 Concentrated Multi Purpose Cleaner/Remover with little effect. The removal consisted of 15 minutes of scrubbing with the Lascaux remover and 15 minutes of intense scrubbing without the remover.

After Bath Evaluation
The plate etched well and has some rich darks and apparent reticulation effects from the Lascaux.

Jos's Etched Plate

Jos’s Etched Plate

Inking Methods
The plates were inked with unmodified Graphic Chemical & Ink Co. Bone Black Etching Ink #514. The ink was carded on with mat board scraps and wiped with used tarlatan.

Paper Type: Magnani Pescia
Paper Soaking Time: 20 Minutes

Test Conclusion
The print was successful in both the stop out portion and aquatinted areas of the copper plate. The most dynamic areas of the plate had a good deal of water that the Lascaux resist was painted into. It is important to apply the Lascaux onto the plate and simply leave it to air dry without reworking. There is no need to try and heat the wash ground to speed up the process of drying.

Printed Images

Jos's Print

Jos’s Print

Wash Ground Test 3 >