We produce CSM-20 ,CSM-30 now together with CSM-40 ,CSM-45 ,good quantities and competitive prices . Our CSM-20 ,CSM-30( Which are equivalent to Dupont's Hypalon) are now avaiable .Index are as below : Model Volatile CL S Mooney Viscosity Tensile Strength ElongationCSM-20 <=2.028-321.3-1.725-40>=25>=450CSM-30 <=2.038-430.8-1.240-60>=25>=450