Rynite FR530 BK507A DuPont Engineering Polymers PET is a 30% glass reinforced, flame retardant, black, modified polyethylene terephthalate resin recognized by UL as UL94V-0 at 0.35mm

聚对苯二甲酸丁二醇酯，又名聚对苯二甲酸四次甲基酯。与PET一起统称为热塑性聚酯。用于电子电气，汽车和机械设备等。