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Corex keeps a close watch to ensure that our products can be used at their best in the applications for which they are intended and that, in terms of logistics and of technical/commercial support, administration and proactive thinking, maximum customer satisfaction is achieved.

A great many aspects of the quality of the tubes are tested in our own labs, according to ISO, TAPPI, CCTI or other international standards. These include:

  • Dimensions (internal and external diameter and length)
  • Adhesion
  • Straightness/roundness
  • Crush resistance
  • Moisture content
  • Dimensional stability (shrinkage)
  • Torque
  • Smoothness/roughness of the outer surface
  • Young’s modulus/E-modulus (high frequency vibrations)
  • Radial crush (compression over the entire surface)
  • Dynamic load – pressure on the tube through the combination of weight and winding speed

Corex sites are certified to the need of our customers.