Durastrength® 350

Durastrength® acrylic impact modifiers

Durastrength® 350 acrylic impact modifier is the leading next-generation core-shell modifier in Arkema’s catalog.  Developed on a high-rubber content design, Durastrength® 350 acrylic impact modifier was a response to industry needs in the window profile market. Compared with competitive high-rubber modifiers, Durastrength® 350 modifier offers faster fusion without the need for additional process aids, and superior impact performance at 3 to 4.5 phr.

Geographic availability

North America
South America


  • Building and construction
    • Building and construction
    • Exterior building products
    • Extrusion
    • Injection molding
    • PVC
  • Chemical and plastics industry
    • Additives
    • PVC
    • Plastic additives


  • Fence, deck and rail
  • Fence, deck and rail extrusion
  • Pipes and fittings
  • Plastics additives
  • Siding
  • Window profile
  • Window profile extrusion