The GBPI Heat Seal Tester is a flexible barrier material heat seal strength testing system test the temperature, pressure, time and strength for heat sealing of various plastic films, composite film, aluminum foil and so on, widely used in food, pharmaceuticals, inspection agency and research institutions. The GBPI Heat Seal Tester is a flexible barrier material heat seal strength testing system test the temperature, pressure, time and strength for heat sealing of various plastic films, composite film, aluminum foil and so on, widely used in food, pharmaceuticals, inspection agency and research institutions.