The 3M™ Flexomount Plate Mounting Tape 411DL is double linered, has a soft rubber adhesive, and flexographic plate mounting sticky back tape. 3M™ Flexomount Tapes are the industry standard for printing solid and line work.The 3M Flexomount Plate Mounting Tape 411DL is double linered, has a soft rubber adhesive, and flexographic plate mounting sticky back tape. 3M Flexomount Tapes are the industry standard for printing solid and line work.