ThermaGard HQ WF heatset overprint varnish is Kerley's wax-free premium, high-gloss, low-color overprint varnish for the highest quality applications that require a non-yellowing finish. ThermaGard HQ WF does not contain PTFE or any other wax, so dried films have limited scuff resistance right from the delivery end of the press. ThermaGard HQ WF gloss OPV is formulated to be used in the press fountain, just like an ink. This means that ThermaGard HQ WF varnish can also be used a “spot” varnish for selective application of varnish on the printed sheet.
ThermaGard HQ WF 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. ThermaGard HQ WF Gloss OPV does accept lamination or stamping readily. ThermaGard HQ WF, 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 at press-side. Contains micronized PTFE, which must be stirred from the bottom of any container before usage.
Packaging:
(Above available for all items on this page. Lined drums available by arrangement.)