... 200mm, Size:40X48,41X49,48X96,40X8 FR4 Glass Epoxy Sheet with high mechanical strength and has good electric strength ... processing under heat and pressure.3. FR4 Glass Epoxy Sheet exhibits extremely high mechanical strength(flexural,impact,and bonding) ... moisture resistant,and tremendous electrical properties.4. FR4 Glass Epoxy Sheet is mainly used in mechanical, electrical, electronics and other ...