Mara® Glass MGLA
Mara® Glass MGLA is a solvent-based baking ink that can be used to print on flat glass (Second Surface) Silicone-free, glossy, high opacity, 2-component ink system, chemical resistance, high weather resistance, lamination compatibility.
Product families
- Other Inks
Other characteristics
- Brand
- Mara
- Features
Chemical Resistant, Excellent Opacity, Good Light Fastness, Good Weather Stability, High Gloss, High Temperature Resistance, Humidity Resistant, Outdoor Durability
- Compatible Substrates & Surfaces
- Glass
- Markets
- Printing & Packaging
- Pot Life
The ink/hardener mixture is chemically reactive and must be processed within 6 - 8 h (referred to 20-25°C and 45-60% RH). Higher temperatures reduce the pot life. If the mentioned times are exceeded, the ink's adhesion and resistance may be reduced even if the ink still seems processable.
- Shelf LIfe
Shelf life depends very much on the formula/ reactivity of the ink system as well as the storage 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.
- Applications
Printing & Packaging — Other Printing & Packaging Applications
- Product Type
- 2K (2 Component) Ink
- Solventborne Ink
- Technology
- Ready-to-Use Products
- Characteristic
Mara® Glass MGLA is made without the use of BPA/ BPS, and is silicone-free. For silicone-free products it is important to use only thoroughly cleaned stencils, squeegees, ink pumps, tubes (in the case of an automatic ink supply), and injectors for the manual ink filling of the stencil, etc. If cleaning is carried out with automatic screen washing systems, we recommend prior to printing an additional manual cleaning with a fresh cleaner not having had any contact with ink residues containing silicone. Ink Adjustment The ink should be stirred homogeneously before printing and if necessary during production. Mara® Glass is a 2-component ink system. Prior to printing, it is essential to add hardener / adhesion modifier in the correct quantity and to stir homogeneously. The mixing ratio is as follows: MGLA + 10% Hardener HT 1 + 10% Adhesion Modifier UV-HV 7 When using hardener, the processing and curing temperature must not be lower than 15°C as irreversible damage can occur. Please also avoid high humidity for several hours after printing as the hardener is sensitive to humidity. Drying Parallel to physical drying, i. e. the evaporation of the solvents used, the actual hardening of the ink film is caused by the chemical crosslinking reaction between ink and hardener. The drying times vary according to substrate, ink deposit, humidity, drying conditions, and the auxiliaries used. For multi-color printing, please note that the previously printed ink films should not be entirely cured before the consecutive ink film is printed on it. Only after all ink films have been applied, they should be baked. The following values, related to the object temperature, concerning progressive cross-linking reactions (hardening) of the ink film (thickness 4 -12 µ) are recommended: Intermediate drying: Overprintable after 3-5 min. / 160 -170°C Final drying: 20 - 30 min. / 180 - 200°C. Fade resistance Mara® Glass MGLA contains a highly weatherresistant binder and pigments of high fade resistance (blue wool scale 7-8). MGLA is used for second surface printing and suited for a 5- year vertical outdoor exposure, referred to the middle European climate. The outdoor durability is reduced in climates with a higher level of sunlight exposure. The above mentioned resistance values are applicable provided that the ink is processed correctly, leading to proper adhesion and scratch resistance after cross-hatch tape tests. Stress resistance After proper and thorough drying, the ink film exhibits outstanding adhesion as well as rub and scratch resistance.
- Labeling Claims
- Silicone-free
