ThermaGard DULL heatset overprint varnish is Kerley's economy-priced, super low-gloss overprint varnish.. ThermaGard DULL contains PTFE, so dried films have good scuff & burnish resistance right from the delivery end of the press. ThermaGard DULL formulated to be used in the press fountain, just like an ink. This means that ThermaGard DULL varnish can also be used a “spot” varnish for selective application of varnish on the printed sheet.
ThermaGard DULL also contains Tung Oil (aka: Chinawood Oil), enabling the film to continue to air-cure after heat-setting to a very hard, yet flexible and more chemically-resistant film Consequently, ThermaGard DULL OPV does not accept lamination or stamping readily (please see our wax free offerings). ThermaGard DULL, when properly applied and adequately air-cured, is capable of withstanding rub tests of several dozen strokes, especially if a small amount of drier such as our “Litho Dri CO 6” is added press-side. Contains PTFE and silica, which must be stirred from the bottom of the container before usage.
Packaging:
(Above available for all items on this page. Lined drums available by arrangement.)