3M™ Heat Shrinkable Medium-wall Cable Sleeves IMCSN protect against mechanical and environmental dangers providing excellent abrasion, corrosion and chemical resistance. IMCSN sleeves have greater flexibility than the ITCSN, our heavy-wall version. Installation of these fast-shrinking sleeves is easy with little training necessary. The 48 inch (121,9 cm) lengths come standard with a factory-applied adhesive/sealant, a thermoplastic material that remains flexible over long periods under adverse environmental conditions. During heating the sealant softens, bonds to underlying surfaces and fills small voids that might be present. The 25 ft (7,62 m) reel version is uncoated. Applications include bus bar insulation and phase rejacketing.