Location

Sika China Ltd.; plant Shanghai, China

Project

Recycling of PVC production scrap

Project goal

Recycling of production scrap with polyester scrim and felt back and reuse in new PVC membranes

Activities

  • Installation of recycling equipment at Shanghai plant to shredder polyester scrim and felt back containing materials and to feed the recycling granulates into the extruder lines
  • Evaluation of external company to grind the shredded materials into granulates
  • Lab testing of granulated recyclates and test trials on extruder lines
  • Parameter setting to achieve required membrane performance

Results

Significant material and cost savings compared to previous years could be realized:

  • 2011: 446 tons recycled and reuse in new membranes
  • 2012: 418 tons recycled and reuse in new membranes
  • 2013: 520 tons recycled and reuse in new membranes