ThermaGard UB TL heatset overprint varnish is Kerley's economy-priced, high-gloss overprint varnish. ThermaGard UB TL contains PTFE, so dried films have excellent scuff resistance right from the delivery end of the press. ThermaGard UB TL gloss OPV is formulated to be used in the press fountain, just like an ink. This means that ThermaGard UB TL varnish can also be used a “spot” varnish for selective application of varnish on the printed sheet. 

ThermaGard UB TL 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 UB TL Gloss OPV does not accept lamination or stamping readily (please see our wax free offerings). ThermaGard UB TL, when properly applied and adequately air-cured, is capable of withstanding rub tests of several thousand 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 the container before usage.