Hydrocolloid adhesive tape on a roll (9945J). May be used for health care medical devices. 27.8 mil THK adhesive on a heat sealable polyethylene film backing. 3M medical materials and technologies helps health care manufacturers design and build more reliable, innovative and feature rich medical devices. Customers leverage 3M technical expertise to select materials and technologies that integrate together for their break through medical industry, device innovations designed for improving or enhancing lives.