Advances in materials, feedblock/die technologies, and winding can help processors develop more sophisticated cast-stretch products. Nanolayer feedblock and die package from Cloeren. Nanolayer feedblocks are considerably larger than conventional coex blocks. For dies, flow-channel shapes had to be reexamined, and precision of tolerances had to be tightened up, in order to meet the process demands associated with such thin layers Here, a 17-micron LLDPE reference film is compared with a 15-micron, seven-layer film comprising Exceed mPE resins and Vistamaxx polymers. The thinner, 15-micron film delivers physical properties similar to those of the 17-micron film, as highlighted by the blue line in the center spider chart. The chart at the bottom demonstrates that the holding force of the thinner, 15-micron film is almost equivalent to that of the 17-micron reference film, despite the weight of the film being considerably less. Also, the 15-micron film breaks at a higher tension than the 17-micron reference film during a pallet-wrapping test Here, a 17-micron LLDPE market reference film is compared with a 15-micron nanolayer film comprising Exceed mPE resins and Vistamaxx polymers. ...