Polyester needle fleece liner with Polypropylene coating (PP)
Stitched seam with PES-thread.  Welded seam coating with PP extrusion 
Suitable for installs with maximum bend of up to 90 degrees and diameter changes
wall thickness 4.5mm (finish wall thickness if not expanded approx 4mm, 3mm when expanded) 
Acceptable Cure Methods - Ambient/Hot Water/Steam/UV
Heat resistance up to 248 degrees F.
Roll Length 328 ft.