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Sheet Die Start Up

Modified on Sunday, 01 February 2015 05:42 PM by mpieler Categorized as Extrusion Hints
Sheet die start up
Vol.19 #3, Nov. 1992

To keep die lips clean during start up and initial sheet casting when molten plastic can stick to the face of the die lips, rub the lips with a silicone grease made for high temperature applications, or a high viscosity silicone oil.

Keep the layer very thin. You don't need to see it for it to be working. Indeed, if you can see the silicone, it is probably hurting your process.

See also:
  • Die lip buildup
  • Sheet pinning
  • Silicone grease

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