New six-layer Series 800 tubing dies from Guill Tool & Engineering Co, W. Warwick, R.I., give processors flexibility to process fluropolymers as well as other materials and adhesives that work well when combined in thin layers (0.02 mm or less). In the Series 800, all inner layers are totally encapsulated to avoid any possible contamination. Short, compact design minimizes residence time and also makes the parts lighter and easier to handle and clean, so material and color changes are done as quickly as possible, the company says. A single six-layer head is less costly to buy than two three-layer heads or three two-layer heads, says Guill.
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