Fiber Glass Cord Dipped glass cord has the advantages of good flame retardant, high temperature resistance, electrical insulation, high strength, good chemical stability and so on. It is usually designed and developed to be compatible to CR, EPDM, HNBR, or other basic rubber materials. Looking for fiber glass cord Application Glass cord mainly used as framework material for automobile timing belts and industrial timing belts Specification Main Specs. EC9 110 1/3 1/6 1/11 1/13 3/15 ECG 150 3/11 3/13