SUMIKON® TM-4120 (Type JB Black) is Glass fiber and Inorganic filler filled Unsatured Polyester polymer molding compound with good electronic property and heat resistance. This grade is official registered UL with V-0 (t=0.75).

SUMIKON® TM-4125 (Type J Black) is Glass fiber and Inorganic filler filled Unsatured Polyester polymer molding compound with good electronic property and heat resistance. This grade is official registered UL with V-0 (t=0.75).