Wescorp Masking Tape, Hi-Temp, 60 Yds, 1/2 in, and it's charging crepe paper (7.0 Mils Thick) with High-Tack rubber adhesive. Wescorp tape does turbocharge, but has minimal charge retention, maping it safe to use around most ESD-sensitive items. Temperature Resistance to a Maximum of 135°C (275°F) for 45 Minutes Surface Resistance 1 x ⁸ to < 1 x ¹² ohms. Tested per ANSI/ESD S11.11 to meet dissipative limits of packaging standard ANSI/ESD S541. Lead-Free RoHS Compliant.