MAGNET 5240 is a 60 mil thick indoor single faced self-adhesive magnetic tape which is comprised of a MULTIPOLE ONE FACE FLEXIBLE MAGNET (a composite of strontium and/or barium ferrite particles oriented with a thermoplastic polymer matrix). It is laminated with a 3.3 mil double coated, aggressive general purpose rubber based PET tape. It is supplied self-wound on a semi-bleached kraft paper liner. These permanent magnets remain magnetized indefinitely if not subjected to a demagnetizing force. MAGNET 5240 is made for general purpose bonding applications to foams, felts, cloths, primed wood, paper, metal, plastics and most low or un-plasticized substrates. It has a good balance of economy and performance.