Mara^® Star SR.

Higher temperatures and an addition of SR 170 Opaque White or SR 070 White will reduce the pot life (approx. 6-8 h). We recommend, therefore, to use SR 270 High-gloss White for a maximum pot life.

If the mentioned times are exceeded, the ink's adhesion and resistance may be reduced even if the ink characteristics show no noticeable change.

Gloss level
Mara^®Star SR is a high-gloss ink with the following measured values (angle 60°, fabric 120-34, white self-adhesive foil). The value 100 stands for high-gloss while value 1 indicates deep-matt.

Physically very fast drying, at 20 °C air temperature overprintable within 5-10 min, when put  at 50° C in a tunnel dryer stackable within 20-30 sec. With high dryer capacity and good ventilation provided, the drying temperature can be reduced to 40 °C for less material distortion. If SR is mixed with Hardener H1, the print will take longer to dry, and therefore the block resistance will be delayed.
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.
SR 270 High-gloss White dries slightly slower than the other SR colour shades. A hot air tunnel drying immediately after printing is recommended for multi-colour prints, as well as for overvarnishing in order to avoid a possible reduction of the high-gloss quality.
An extended drying time is necessary when Softener WM 1 (2-5%) has been added to the ink.