Durastrength® 527


Durastrength® 527 is a high performance, highly efficient impact modifier designed for use in window profiles, capstock solutions,and other weatherable vinyl applications. Durastrength® 527 enables a broad processing window and best-in-class impact strength based on efficiency.

Geographic availability



  • Building and construction
    • Exterior building products
    • Extrusion
    • PVC
    • Window
  • Chemical and plastics industry
    • Plastic additives


  • Fence, deck and rail extrusion
  • Plastics additives
  • Window profile
  • Window profile extrusion

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