... 4.good sealing performance 5.material:rubber /PVC/EPDM casement window seal Rubber assorts performance :1.good sealing ... 1.material :Silicone, CR, EPDM, Viton, TPE, PVC, NBR, etc2.Durability and environmental production , no bad ... such as rubber tube, rubber cord, door and window seals, weather strip, u channle, glazing rubber ... firm reinboard reel & carton box casement window seal with PVC and EPDM