Sirchmark evidence tape is manufactured on a matte acetate base featuring a top surface that may be written on with pencil or pen. It is coated with a permanent, quick-setting, acrylic adhesive that defies removal from most surfaces. To increase the tape’s ability to tear, it is perforated with 3/16” slits at 1/4” intervals. Dual-serrated tape edges add redundancy to the integrity. The roll is 1 1/2” wide, 0.001” thick, on a 3” core, and is backed with 50 lb. stock Kraft liner. Attempts to remove this evidence tape will cause the tape to break and peel off in irregular strips. The red tint and black overprint will dissolve and smear when solvents like alcohol and acetone are applied – positive proof of tampering. This tape has a 3/8” wide white strip throughout the entire length of the roll which provides the space to write any necessary information. Sirchmark is regularly used by hospitals, laboratories, banks, and race tracks – wherever a tamperproof seal is needed! Available in 2 sizes (54 ft or 108 ft)