STICKY: 120Grams Great for hard and soft substrates, the Crafting Besties sublimation paper is the best paper at the best price! The thicker bond keeps the inks from bleeding through the paper which means more ink goes into the substrate. Printing should be done on the specially coated brighter, whiter side. Designed for use with soft substrates, Crafting Besties Tacky uses "Light Thermo Tack" adhesive2in or 3in coredepending on roll size, to keep transfers from shifting during pressing. "Thermo Tack" is a tacky super-uniform coated print surface which activates during the transfer process.