Quality 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. Corex Holding HQ Kareelstraat 108 9300 Aalst Belgium +32 (0)56 70 21 21 info@corexgroup.com About us Corex Vision & mission Milestones Sustainability Certificates Our solutions Spiral wound tubes and cores Parallel or convolute wound tubes Consumer packaging Coreboard Greyboard Edge protectors About this site Privacy policy Terms & conditions Cookies Sitemap © 2021 COREX Group - Member of VPK Group NV, all rights reserved. Website by BOA To use this site optimally, it is necessary to allow cookies. More information Allow all cookies Settings