J.V. Converting MAG-01-W/WIOE075333 JVCC MAG-01-W Magnetic Tape, 0 to 150 Degree F, 10' Length x 3/4" Width, Write-On/Wipe-Off, White Tapes marked as write-on/wipe-off have a non-porous, smooth, and shiny White vinyl surface If your magnetic tape curls when you try to apply it to your surface, this is due to being wound in a roll and has no effect on the magnetic properties or quality of the tape Thickness: 30 mils (carrier, adhesive) Service/operating temperature: 0 to 150F Carrier/backing: magnet. Adhesive: n/a