Block Out Pen

Using Blockout is an important step in preparing a screen for press, but fixing small pin holes in your emulsion after exposure or even during the printing process is difficult to do with a regular liquid blockout. This blockout pen allows you to quickly and easily block out small pin holes or registration marks left in the emulsion. Our green blockout pen is ultra-fast drying (30 to 90 seconds) and water-soluble. We recommended this blockout pen for plastisol, UV and most solvent-based inks. Reclaims with warm tap water. To ensure complete coverage, the blockout solution in these pens has a fairly high viscosity. They need to be shaken well before use and may have to be squeezed hard to get the blockout fluid moving smoothly.