Technical Data Sheet Field of Application Acting as a primer, finishing or protection, Mara® Shield UV-curable Liquid Coatings are applied in a roller-coating process, utilizing either a smooth or grooved applying roller to coat the substrate. Substrates Information on coating digital prints UV-PGL is fully compatible with Marabu’s Digital Printing Inks DUV-R and DUV-H. The Liquid Coatings UV-RG/-RM, UV-FXG/-FXM, and UV-CBG are, however, fully compatible with Marabu’s solvent based and UV-curable Digital Printing Inks. It is fundamental to ensure good adhesion of the Digital Printing Inks to the substrate. If you want to coat digital prints please make sure that inks for rigid substrates have been used, since they are chemically resistant to the Anti-Graffiti formulation. So-called “Hybrid-inks" are not compatible with Mara® Shield UV-AG. Glass The UV-Primer Mara® Shield UV-PGL is suitable for roller-coating (priming) onto flat glass. UV-curable Digital Printing Inks often fail to adhere to glass. Sufficient adhesion is provided by roller-coating the glass panes with primer UV-PGL. In order to achieve additional protection for high-quality products and/or an even degree of gloss, the motive can be overprinted edge-to-edge with UV-PGL. Rigid substrates UV-RG and UV-RM are suitable for roller-coating onto the below mentioned rigid substrates: • Rigid PVC ( including foamed PVC) • Polystyrene (PS, ABS) • Polycarbonate (PC) • Polyester (PET-G) • Various wood / plywood materials • Aluminium composite panels (Dibond®) • Cardboard, corrugated board The UV-curable Liquid Coating Mara® Shield UV-AG is suitable for roller-coating onto the below mentioned rigid substrates: • Rigid PVC • ABS • Polycarbonate (PC) • Polyester (PET-G) • Aluminium composite panels (Dibond®) This Liquid Coating is basically a protective barrier against soiling, scribblings, or graffiti, which can be removed easily e.g. in public areas or transportation. Tested markers / sprays: • Marabu Do-It colour spray • Edding 3000 - Permanent marker • Edding 400 - Permanent marker • Soennecken -Permanent marker • Schneider 230 Permanent marker • Staedler - Lumicolor permanent Tested Cleaners /Removers: • Isopropyl alcohol (IPA) • 3M Graffiti Remover System® Flexible substrates UV-FXG and UV-FXM are suitable for rollercoating onto the following flexible substrates: • Self adhesive PVC foils • Tarpaulin materials (plasticised PVC) UV-RG/-RM and UV-FXG/-FXM were designed as a protective overcoat for digital prints. Cardboard Materials UV-CBG is available for roller-coating onto these substrates: Marabu GmbH & Co. KG • Phone +49 7141 6910 • [email protected] • www.marabu-inks.com

Technical Data Sheet Mara® Shield Liquid Coatings • Cardboard, corrugated board • Reboard® material UV-CBG is suitable for roller-coating onto digital or screen prints on cardboard materials. These applications include e.g. displays, a variety of interior design objects made of Reboard® materials, and printed packaging. Owing to its slight flexibility, UV-CBG is also suitable for post processing steps such as folding or cutting. Since all the print substrates mentioned may be different in printability even within an individual type, preliminary trials are essential to determine the suitability...

Technical Data Sheet Mara® Shield Liquid Coatings Mara® Shield Liquid Coatings achieve their final chemical resistance after 24 hours. If UV-PGL is applied onto glass, this timeframe may be reduced as follows: Oven (140°C/ 30 min.): after having cooled down IR Flow Dryer (e.g.140°C/ 30 sec.): 8 h The curing speed is generally dependant upon the kind of UV-curing unit (reflectors), number, age, and power of the UV-lamps, the layer thickness, substrate in use, as well as belt speed of the UV-curing unit. GU Angle UV-AG Anti Graffiti Varnish 85 60° UV-CBG Gloss Varnish for cardboard 75 60°...

Technical Data Sheet Mara® Shield Liquid Coatings FXM, and decreases the flexibility of UV-CBG (cutting, folding). The cleaners UR 3 and UR 4 are recommended for manual cleaning of the working equipment. Cleaner UR 5 is recommended for manual or automatic cleaning of the working equipment. Printing Parameters Roller Coater Settings Variable parameters like the speed of the applying, transport, and doctor roller, as well as the regulation of the dosing unit must be adjusted individually dependant upon the application and the speed of production. A speed ratio of 4:1 between applying roller and...