Twinwall Coruplas or Correx is an extruded polypropylene board that is environmentally friendly and recyclable. Coruplas has very good stiffness due to the twin-walled, fluted surface. Coruplas sheets are corona treated to make it ink receptive and provides a cost effective option for indoor and short term outdoor signs.


  • Low-cost, lightweight yet rigid and shatterproof
  • Waterproof, making it suitable for outdoor use (with appropriate support)
  • Suitable for use with food
  • Resistant to grease and many other chemicals
  • Good acoustic and thermal properties
  • Can be die cut, guillotined, shaped, stapled, creased and ultrasonically welded


  • Coruplas has applications in signage, packaging, printing, advertising, point of sale, storage, transport and general industrial areas.
  • Correx can also be used for estate agent boards and packaging.
  • It is used to produce printed packaging boxes and dividers.
  • The building trade relies on Coruplas as protection and anti-scuff sheeting.
  • 3mm Coru Panels in pack sizes of 50.

Stock Offering

  • Sheet sizes: 510mm x 340mm, 600 x 400mm, 600mm, 450mm, 750mm x 500mm, 800mm x 600mm, 2500mm x 1250mm
  • Thicknesses: 2, 3, 3.5, 4, 5mm
  • Standard poster poster size panels (Standard sizes: A4- A0) in 3mm
  • Colours – White, Black, Yellow (yellow only in 3mm)