Largest manufacture and exporter in China Competitive price, excellent quality ISOFLEX elastomeric rubber foam are cell-closed products, mainly made of NBR/PVC. It ISOFLEX is especially designed for HAVC, and other industrial, commercial fields. Advantages:Retard heat flow,Low thermal conductivity, heat insulating,Fire blocking,Resistant to mold and mildew Working temperature: -185 to 105 (degree ...