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  1. Mykolaj

    HDPE Extrusion what MFI value for best production efficiency

    Hi, MFI 1.6 will be more suitable for you. MFI 0.25 is more for thin films. But all production lines have their own optimal requirements for raw materials to make the production process the most efficient. So it is a good idea to read the production line's documentation or to contact the...
  2. Mykolaj

    Some bubbles get popped in the forming roller after extrusion of the bubble-wrap

    Hello! 1. Two main things for forming perfect bubbles - clean bubble roller and good raw material. If your defective bubbles are repeated on the film every few seconds in the same place - that means you have to clean up your bubble roller. If defective bubbles every time are situated in...
  3. Mykolaj

    Bubble Wrap Film Plastic Resin Formulation Question

    Hi! 1. We use up to 30% recycled LDPE or LLDPE and 70% pure LDPE with MFI=2-3. More than 30% LLDPE is not good because of shrinkage when film comes from the t-die and because of too big elongation at using. Standard formulation you won't have problem with - 100 virgin LDPE MFI=2 2. Not...
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