Injection Molding Grade High-Flow Polypropylene with Zero Post-Mold Shrink

Request Number N312633
Author Yanfeng Automotive Interiors
Need details

High flow polypropylene compound with zero post-mold shrink after injection molding.




What we are looking for:

  • A polypropylene compound with a shrink equivalent to or less than that of a 20% glass filled polypropylene but with the density of unfilled polypropylene.







Currently we have an application where we mold polypropylene on the backside of a material that does not shrink. This difference in shrink causes warp and dimensional issues.


We are forced to use a 20% or 30% glass-filled polypropylene for its low shrink (4 or 3 respectively). Unfortunately, this increases the weight of the final part.


Key Success Criteria
  • A zero shrink is desired. However a 3 or 4 (x10^-3 mm/mm) is definitely of interest
    • Specification: ISO 294-4 Mold Shrinkage Tool/120 °C Afterbake
  • Flow ≥ 20 g/10 min
  • Carry a flow length of up to 160mm
  • Specific gravity = 0.9 g/cc


Preferred Collaboration types
  • To Be Negotiated
Items to be submitted
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Point of Contact
Kevin Andrews
Area of Interest
  • Aerospace & Defense
  • Building & Construction
  • Chemical Manufacturing
  • Transportation
Yanfeng Automotive Interiors
Due Date
February 27, 2017
Award Amount
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