Mara® Glow GW
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Technical Data Sheet Solvent-based phosphorescent ink for screen printing Two phosphorescent duration qualities, low odour, matt, for PVC, PS, paperboard, and cardboard self-adhesive material or signs in the realm of advertising or toys. Mara® Glow GW is suitable for printing onto • PVC self-adhesive film • rigid PVC • Polystyrene PS • ABS • SAN • Acrylic glass PMMA • Polycarbonate PC • Paperboard, and cardboard Due to the very high thickness of printed ink layers, printing onto thin materials like PVC self-adhesive film might be difficult. To avoid material warpage, we recommend the use of quality films with a film thickness of at least 100µm. 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 useand especially the subsequent finishing. Field of use Mara® Glow GW is a phosphorescent solventbased screen printing ink and is available in two different phosphorescent duration qualities. In general, phosphorescent inks absorb and store illuminated short wavelength UV rays and/or light and release them as longer wavelength visible light once the illumination has stopped. This results in illuminated signs or effects during darkness. For the long-term phosphorescent quality, this effect can be repeated many times. The following fields of application are possible: Short-term phosphorescent duration Mara® Glow GW 361, yellow-green inherent colour, is suitable as effect ink for printing onto Long-term phosphorescent duration Mara® Glow GW 760 (White Green) and Mara ® Glow GW 761 (Yellow Green) both contain very high pigment qualities and, if processed properly, are suitable for producing long phosphorescent duration according to DIN 67510. This quality is used in the manufacture of longterm phosphorescent products like emergency exit and hazard location markings and the marking of devices, instrument panels, and dials. We recommend not to use a spray gun. Characteristics The basis of the long-term phosphorescent ink is an extremely hard pigment with a very high specific gravity and high pigment content. The ink, therefore, must regularly be stirred homogenously before printing and during production. The pigment content in the printed ink layer will otherwise be reduced and the phosphorescent duration required by DIN 67 510 will not be met. Due to the hard pigment quality, the stencil abrasion during production is quite significant. We recommend that the emulsion is only applied to the print side of the screen, and a hard squeegee with rounded edges is used. The drying rate as well as the block resistance are dependant upon the chosen mesh count and the drying conditions. Printability GW 361 The ink containing the short-term phosphorrescent pigment quality, GW 361, can be processed with a mesh of up to 48-55, analogous to other screen printing inks. Marabu GmbH & Co. KG • Phone +49 7141 6910 • info@marabu-inks.com • www.marabu-inks.com

Technical Data Sheet Pad Printing suitability The colour shade Mara® Glow GW 760 also features limited suitability for pad printing. We recommend using a thick steel plate (10 mm). Recommended etch depth: 25 - 30 µm. Phosphorescent pigments are very hard and therefore have a very strong abrasive effect on the cliché, doctor blade, and ink cup. Common photopolymer clichés do not resist this strong abrasion and become unusable after a few prints. Opacity To achieve a maximum phosphorescent effect, Mara® Glow GW should only be printed onto white substrates due to the low opacity of the ink....

Technical Data Sheet age temperature. It is 2 years for an unopened ink container if stored in a dark room at a temperature of 15-25°C. Under different conditions, particularly higher storage temperatures, the shelf life is reduced. In such cases, the warranty given by Marabu expires. Note Our technical advice whether spoken, written, or through test trials corresponds to our current knowledge to inform about our products and their use. This is not meant as an assurance for certain properties of the products nor their suitability for each application. You are, therefore, obliged to conduct...