Roofing made with DuPont™ Elvaloy® KEE delivers long service life in demanding environments

DuPont™ Elvaloy® ketone ethylene ester (KEE) resins help single-ply roofing manufacturers develop rugged, easy-to-install membranes that fight weathering and chemical attack.» More 
Benefits of roofing made with Elvaloy® KEE
  • labor-saving installation
  • strong, heat-welded seams
  • easy tie-ins
  • easy cut-outs or repairs
  • outstanding chemical resistance
  • enables light colors, cool roofing
The proof is in the roof
Read about projects from leading roofing system manufacturers.» More 


Learn more about DuPont™ Elvaloy® KEE

Elvaloy® also builds longer-lasting roads

Unique Elvaloy® terpolymers are used in polymer-modified asphalt (PMA), to increase pavement resilience and fight rutting.