Opaque Marker Screen Printing Film Ink UV Resistant Coating Pen .5 Nontransparent opaque ink for coating a printing negative on film or plate by covering unwanted transparent areas of the negative that would otherwise be seen in the printed image. Kimoto Pake marker pen supplies for manufacturing in screen printing , publishing , photography , and pcb fabrication screening department . Opaque marker is waterproof for retouching and correction on film and plate negatives. Very high density coating comes in ruby red . Kimoto Pake art supply pens are available in different line widths. Opaquers have even flowing nibs that lay down a rapid drying , thin film that does not creep, spread, crack or chip. Great for printers, screen printing, sign engravers, photography for uv light resistance. Also utilized in graphic art, electronic design. Pens feature a special formulation of UV absorbers that thoroughly block all light waves to prevent exposure . Excellent accessory for uv exposure unit machine. Opaque waterproof, smudge proof, light resistant, fast drying ink. mpn 892 PFR Perfect Fine .5mm , Red Other Available Sizes Medium Point 3mm , Fine Point 1mm , and Super Fine 0.1mm , Ultra Fine .05mm Quantity: 1 pen Price: $7.76