supply of rectangular non metallic expansion joints made up of imported fabric insulation along with required fasteners flexgen 2004 in fabric layer consists of fluorotex 22 , supply of rectangular non metallic expansion joints made up of imported fabric insulation along with required fasteners. flexgen 2004(in) fabric layer consists of (fluorotex-22). 1) one layer of ptfe coated and both sides laminated glass fabric, 2) one layer of coated texturized fibre glass fabric, 3) one layer of needled glass felt. l 8800 x b 3800 mm, width : 400 mm technical specification : normal dimension : l 8800 x b 3800 mm design pressure : (-) 6.38 kpa, design temperature : 139° c fatigue lifeclc : 1000, axial mov : + 40 mm lateral mov : + 20 mm, width : 400mm