The only recommended application tape for use with Oracal 631 is the Oracal HT55. ORATAPE® Series HT55 Decorative Film Application Tape is optimized to provide trouble-free pre-masking and graphic application with plotter films that use silicone-coated release liners such as ORACAL® 631 Exhibition Cal, ORACAL® 8810 Frosted Glass Cast and ORACAL® 8510 Translucent Etched Glass Cal. The semi-transparent face film and special high-tack adhesive used in ORATAPE HT55 enable the production of pre-masked lettering and graphics that can be rolled, stacked and shipped without wrinkling, edge curling or tunneling. Use of Rtape AT60 (or any medium tack application tape) is strongly discouraged as it is not intended for matte finish materials.
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