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Nazdar 7900 Series Coroplast Ink

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7900 Series Corogloss is a solvent-based screen ink formulated for transportation graphics, real estate signs, POP, and other outdoor signage applications.

 Fluted Co-Polymer Resin Plastics such as Fully Corna Treated Coroplast, Corrugated Plastics.
 Bus Signs, Real estate signs, Yard signs, Political Signs
230-305 tpi (90-120 tpcm) monofilament polyester mesh for most applications
Solvent resistant direct emulsions and capillary films
 70-80 durometer polyurethane squeegee
 1,400-1,800 square feet (130 - 170 square meters) per gallon depending upon ink deposit
To improve flow, thin 7900 Series ink up to 15% (see Additives section). Add only enough ink to the screen to be able to print for 5-10 minutes. Add additional ink in small increments throughout the print run to maintain screen stability. Thoroughly mix the inks prior to printing.
Maintain ink temperatures at 65°-90°F (18°-32°C) for optimum print drying performance. Lower temperatures increase the ink viscosity, impairing both flow and drying. Elevated temperatures lower the ink viscosity, reducing print definition, film thickness and opacity.
Pretest to determine optimum printing performance for a particular set of ink, substrate, screen, press, and drying variables/conditions.
7900 Series ink dries by solvent evaporation and will air dry in 20-40 minutes or may be force dried in a jet dryer at 130 ̊F (54 ̊C).CLEAR
Mixing Clear / Metallic Mixing Clear / Overprint Clear: Use 7927 Mixing/Overprint Clear to reduce the density of colors or as a clear base for specialty additives such as Metallics. Use 7927 Mixing/Overprint Clear to provide added surface protection and extend outdoor durability of colors.
All additives should be thoroughly mixed into the ink before each use. Prior to production, test any additive adjustment to the ink.
Thinner / Retarder: Use 5560 or 9050 to reduce the viscosity or to prevent drying in the screen during hot climate conditions or for slower drying of these inks. Add up to 15% by weight. Over thinning with 5560 or 9050 can result in blocking.

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