Is Corflute® made from Polypropylene (PP) or Polyethylene (PE)?
Corex has been extruding Corflute® for more than 30 years.
Traditionally polypropylene was the most suited polymer for use in Corflute® due to its printability credentials.
Extruded polypropylene can achieve a smoother surface. When printed, the ink keys extremely well to the sheet, unlike polyethylene which has a rougher, ‘oilier’ feel to it.
Polypropylene can also be extruded faster than polyethylene, therefore requiring less energy to produce.
Polyethylene was initially used in some Corflute® products for horticultural applications (like tree guards) because it has better UV resistance. However, many advances have been made to additives in polypropylene which has enabled its UV resistance to now be excellent.
Corex manufactures both solid HDPE and PP, and both are recyclable at our closed-loop facility. We choose which material to use based on product and application. Both have their unique benefits.
Read more about Corflute®.