3M Double Coated Polyester Tape 442KW is a double sided tape featuring a rubber based adhesive, ideal for laminated bonding with semiconductor CMP polishing pads and clean removal from platens. A thin polyester (PET) film carrier helps the adhesive bond firmly to both platen and pad. A polycoated paper release liner provides excellent dimensional stability.3M Double Coated Polyester Tape 442KW has been developed and used to attach polishing pads to platen in the CMP industry, due the good chemical resistance and easy removal ability from the platen.