Our blockout is a medium viscosity, water soluble red (BL-901) or blue (BL-905) blockout. It was designed to fill the open areas of the screen that are not covered by emulsion or film. Blockout can be used for masking other designs on the screen until they are ready to be printed. It is excellent for touching up pin holes and fish eyes.

• Low VOC, non-hazardous biodegradable, and drain safe

• Fast drying and covers with one coat

• Completely water soluble

• Pleasant odor