Heat Sealers 2 way knife for ease of cutting material Electronic timer control for repeatability Will seal a wide variety of materials including anti-static and polyethylene Depending on the types of materials used these units will seal from 2 layers of 25 micron (2 x 100 gauge) up to 2 x 200 micron (2 x 800 gauge) RS Heat-Seal Tubing is 62.5 micron (250 gauge