15" X 20" Anti Static AND Heat Resistant Soldering / Hot Air Rework Mat / Pad, Upcycled, USA Made More Heat Resistant Than Vynil Mats, More Rugged Than Silicone Mats Heat, Anti Static and Chemical Resistant, Tough Cut and Abrasion Surface Top Layer - RTT@ 10^8 - 10^9 Ohms/sq Bottom Layer - RTT@ 10^8 - 10^9 Ohms/sq Useful for Soldering Electronics and Circuit Board Repair