This Heavy Duty clamp style constant Heat Sealer is designed to give fast and precise results every time. With a 5 minute warm up, the temperature can be set between 100 and 255 degrees F. With Teflon coated, 3/4" wide seal bars, it can make short work of both monomer and multilayer composite materials as thick as 11 mils. Each are UL compliant and has a DOD National Stock Number for reliability.