Uses for Speedball Screen Filler

Stop out varnish used straight.
Diluted about on third with water and used as a spray aqua tint
Diluted and used as a lift-ground or destruction-ground.
Stencil technique used with aquatint. Any object or cut stencil can be placed between the airbrush and the plate to create an airbrush stencil.
Reverse mezzotint technique. A plate can be etched with an aquatint after which screen filler can be painted onto the plate, in various thicknesses, to "block-out" the plate. This screen filler is allowed to dry after which the plate can be printed.
Sugar or rock salt can be dropped into the wet screen filler. The screen filler is allowed to dry and the salt or sugar removed before etching.
Water resist technique. Water painted onto plate and airbrushed with screen filler. Water can either be allowed to dry or can be immediately washed away.
Crayon block-out resist. Draw with crayon onto aquatinted plate and etch and re-draw and etch progressively until image is finished. Heat or Citra-sol removes crayon.
Undiluted screen filler can be used as an aquatint technique in the Intaglio-type techniques.
Corn syrup (other aqueous substances such as barrier cream, lanolin or glycerin and also be used) can be painted on to plate and screen filler airbrushed on top of plate. Corn syrup can washed away to reveal positive mark. Corn syrup can be used as a way of temporarily blocking out parts of an aquatinted image so that a variety of aquatint marks can be applied.
Screen filler can also be applied to the plate with an atomizer or by splattering with a toothbrush to produce coarse aquatint marks.