STI Ready For Use Silicone Inks

SPECIFICATIONS:

USES: For use on cottons, cotton/polyester blends, can be used on cold peel transfers, and on Spandex and Lycra.

PRINTING METHOD: For the most durable transfers a thick ink deposit is recommended. If using direct emulsion coat your screen normally, then face coat the print side of the screen until the necessary stencil thickness is achieved. Capillary films in the150-200 micron range may also be used to achieve a thick stencil thickness.

OPACITY: Excellent opacity.

GEL TEMPERATURE: Temperature-Inks will gel or flash cure when they reach temperatures between 220-240°F for four to six seconds depending upon the flash cure unit as well as the time and temperature at which the flash cure unit has been set. To speed up gelling, pallets may be preheated to temperatures between 120-140°F immediately before beginning full production.

CURE TEMPERATURE: Inks will fully cure after reaching temperatures between 250-290° F for 1½ to 2 minutes inside the curing oven. For delicate fabrics prone to dye migration, shrinkage or fiber damage, cure prints at the lower temperature and higher dwell time.

MIXING CATALYST: Mixing Catalyst--5-7% by weight of STI7150 Catalyst or STI7151 Gel Catalyst mixed into the inks provides the most excellent results. Amounts less than 5% will result in a finished ink that may not cure properly. For STI7711 Defender Black an addition of 7-10% STI7150 or STI7151 is recommended. For STI7838, STI7701 or STI7702 eight to 10% catalyst must be added. The amounts of catalyst mixed into the inks should be carefully weighed using a digital gram scale. STI7150 Catalyst is a liquid that should be shaken vigorously before adding.

CAUTION--! It is recommended that only the amount of ink that can be printed in a four to six hour period be mixed at any one time. Higher amounts of catalyst will diminish the pot life of ink faster. Test print before making a production run.

SCREEN FABRIC: Use 83 to 125 monofilament polyester.

SQUEEGEE: 70 durometer or 70/90/70 triple durometer squeegees are recommended.

SCREEN COATING, FILM, BLOCKOUT:Any direct emulsion or capillary film compatible with traditional plastisol textile inks that will produce a thick stencil that produces a thick ink deposit.

MODIFIERS: A small amount of STI7902 reducer (3 to 4%) can be used when necessary.

MIXING PIGMENTS AND BASES: 10-15% pigment load into appropriate base for application is recommended. CAUTION: Pigment loads higher than 15% can cause crocking and curing issues.

TRANSFERS: T75, T100,or coated polyester release films may be used. For increased durability, use adhesive powder or print H1 (medium grind) adhesive over the entire transfer while wet. Peel cold.

WASHUP: T-125 mineral spirits, or biodegradable washes SYS-2500, SYS-2550 or SYS-2510 screen wash gel.

ALWAYS TEST PRINT BEFORE PRODUCTION!