The resin used in UTLH prepreg system is high purity and high gradeepoxy resinMaterials, pure resin low halogen below 1500pp, ultra-lowhalogen below 800ppm, prepreg cloth halogen can achieve 400ppm,can be impregnated with carbon fiber, glass fiber and other one-wayand fabric prepreg; It has suitable adhesion, sticking property, suitablefor autoclave, molding, winding and other forming processes; It canpass RoHS halogen test to meet 3C products (such as mobile phonessmart wear, biomedical and other fields), and also meet the halogenrequirements of export products.

Type

Type I (low halogen)

    Resin ammonia+Australian ≤ 1500ppm; Pre impregnated fabric ≤ 800ppm

Type Ⅱ (ultra low halogen)

    Resin chlorine+bromine ≤ 800ppm; Pre impregnated fabric ≤ 400ppm

Storage life of prepreg

1 month @ 25 ° C

3 months @ 0 ° C

6 months @ -18 ° C

Reference curing conditions

60 minutes (min) @ 130 ° C or 30 minutes (min) @ 150 ° C

（The actual molding time depends on the thickness and structure of the product）