Libra Matt LIM
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Technical Data Sheet Field of Application Substrates The screen printing ink Libra Matt LIM is designed for printing onto • Rigid PVC • PVC self-adhesive foils • Soft PVC • Polystyrene (PS) • Acrylic (PMMa) • Polycarbonate • coated Polyester Foils • synthetic and resin-coated Papers, cork, and cardboard Since all the print substrates mentioned may be different in printability even within an individual type, preliminary trials are essential to determine the suitability for the intended use. Field of use Libra Matt LIM is a universal matt ink used for printing substrates where a particularly high requirement for ink opacity, flexibility, or resistance to plasticizers is required, e.g. • scales, front panels and displays • double-sided stickers as intermediate ink • printing, rolling, spraying of PVC tarpaulins • pressing, sealing into acrylic For truck tarpaulins, we recommend the ink type Maraplan PL. LIM can also be processed with a spray gun, but preliminary trials are necessary for this process. In order to avoid surface irregularities, we recommend to filter the thinned ink (25 pm screen) before processing. Characteristics Ink Adjustment The ink should be stirred homogeneously before printing and if necessary during production. Drying Physically fast drying, dries at 20°C air temperature within 20-30 min to be overprinted, at 50°C in the tunnel drier stackable after 30-40 sec. The times mentioned above vary according to the substrate, the ink film thickness, drying conditions and the auxiliaries used. Generally an extended drying time is necessary when overprinting the ink. Fade resistance For outdoor use, matt colours generally show less colour shade stability than glossy colour shades. We are using pigments of an excellent fade resistance for all shades of our Libra Matt LIM ink type. All basic shades are suitable for an outdoor use of 2 years if placed vertically and referred to the middle European climate. Mixed shades containing > 30% transparent base LIM 409 or printing varnish LIM 910 or shades mixed with white mostly have a reduced fade and weather resistance. The fade resistance of the ink is also reduced, as the density of the printed ink film decreases, therefore, we recommend a fabric 77-55 for outdoor use. Stress resistance After proper and thorough drying, the ink film is stackable, weather resistant as well as suitable for welding. Please note that the shades 980 and 180 Black are not suited for welding. Due to their chemical composition, the basic shades are less rub-resistant than other glossy screen printing colour shades. Marabu GmbH & Co. KG • Phone +49 7141 6910 • info@marabu-inks.com • www.marabu-inks.com

Technical Data Sheet For a maximum rub and abrasion resistance, it is necessary to overcoat with printing varnish LIM 910. The pigments used are resistant to solvents and plasticizers. 570 Offset Baseprint Transparent White High opque white LIM 170 can be used for signature fields. Block-out silver LIM 182 is suited for the production of double-sided stickers. All shades are intermixable. Mixing with other ink types or auxiliaries must be avoided in order to maintain the special characteristics of this ink. All basic shades are included in our Marabu-ColorFormulator (MCF). They build the...

Technical Data Sheet Thinner is added to the ink to adjust the printing viscosity. For slow printing sequences and fine motifs, it may be necessary to add retarder to the thinner. For an additional thinning of the ink containing retarder, only pure thinner should be used. The addition of surface additive SA 1 can increase the resistance against abrasion and other mechanical stress (max. addition 10%). Plasticizer WM 1 is recommended if high flexibility is required from the printed ink film. This is important for thin substrates with a natural tendency to roll, as well as for...