Mid. Tg Halogen Free Material
TU-742 HF/TU-74P HF halogen free materials are made of epoxy resin and E-glass fabric. Unlike conventional FR-4 material using brominated resin as flame retardant, TU-742 HF/TU-74P HF achieve flammability class of UL94V-0 by incorporating nitrogen compounds in the materials. The materials are compatible with the AOI process and exhibit the UV-block characteristic. TU-74P HF is designed for use with TU-742 HF for making multilayer printed wire boards. TU-742 HF is also available for single/double sided application. This series of green materials are designed to eliminate the use of halogenated resins due to the potential hazardous effects from the environmental concerns. TU-742 HF laminates also exhibit superior chemical resistance, thermal stability and CAF resistance.