Patco 565 Screenblock Tape A low density polyethylene film with acrylic adhesive designed to be used as a protective mask exhibiting excellent chemical, moisture, and abrasion resistance. Applications For use as a border and block-out tape for screenprinting applications. Border tape - It works by forming a well preventing ink from penetrating beyond the image area. Block-out tape - Can be adhered directly to the mesh allowing muli-colored printing and to cover pinholes. Features & Benefits ---Superior conformability.---St retches with screen during frame retension.---Prevent s leakage from inks & cleaners.---500% elongation capacity.---Good tack and moderate adhesion.---------Pr ovides clean removal from most surfaces.---Easy to apply.