Walco Materials Group

Shin-Etsu Silmark M Series Inks are specially developed for marking silicone rubber parts that are molded, calendared or extruded.  It cures at an elevated temperarure and will bond to most oil free silicone surfaces when other inks will not. Silmark Ink has very good adhesion proteries, wear durability, heat resistnace and cold resistance when places on silicone rubber.

Sillmark Ink will remain useful after mixing for approximately 24-48 hours at room temperature.  Keeping the mixture in a closed container in a below 50F environment will extend the mixed pot life.  The separate components may be stored in tightly closed containers for up to one year at room temperature.