3m scotch 27 white fibreglass insulating tape 3m fe510085544 this scotch8482 27 white fibreglass insulating tape is a self adhesive coated glass fabric tape suitable for insulating electrical components and protective elements against heat circulation it is also used as cable protection during soldering and welding work the glass fabric is thermally stable and has high tearing strength 3m fe510085544 scotch 27 white fibreglass insulating tape 12mm x 20m