A quick guide to aquatinting with acrylics
For a base aquatint, aim for a density of dots that will cover between 40% to 50% (not more than 50%) of the plate surface.
Create marks on top of the aquatinted plate with Crisco, oil crayon, Scotch tape or acrylics; during etching these marks will remain lighter in tone.
You may create successive layers of tone all the way from white via various layers of grey to black according to how long you etch the plate.
You can create a whole tonal range in one etching stage simply by varying the density of the sprayed dots. You can also make blends, graffiti marks and stencil effects this way.
Try dissolving some of the sprayed plate surface with water; you will get amazing random wash effects.
After etching, any fatty deposits (Crisco or oil crayon) need to be washed off with soapy water. Acrylics can be stripped using soda ash or a citrus-based solvent (see below), or left on the plate for printing.
Safe Stripping with Orange Zest Solvents

An acrylic aquatint can be stripped off in a strong soda ash solution (1 part crystals to 3 parts warm water), or use one of the excellent citrus-based safe solvents now on the market (such as D*Solve by Z*Acryl) which remove acrylics with great ease.
"This truly revolutionary solvent was formulated as an alternative to petroleum-based turpentines and thinners. It is made from 100% renewable agricultural resources of soy, corn, and citrus, and is non-polluting, non-carcinogenic, and bio-degradable. Less than a teaspoon will thoroughly clean a large plate. DSolve will even strip dried ink from etched lines." Dick Blick
Image: Z*Acryl Product D*Solve
Typical etching times are as follows: -
CLICK for Henrik Boegh's instructions on how to make your own AQUATINT SPRAY BOOTH
