This product is an unique composite material that glass fabric is inside and ptfe is coated on both side. Reinforced by glass fabric inside and ptfe coated on outsde, outstading mechanical strength and heat resistance , non-adhesiveness , slipping property and chemical resistance due to ptfe property. Thickness 40um ~ 300um Width: ~1500mm Various application fields such as, electronic industries, packaging, releasing sheet and food ~1500mw * 100m or 50m