... & water resistance 2.high air permeability,healthy,very eco-friendly. usage Hot air seam sealing tape General Width18mm~ ... Friendly)+hot melt adhesive filmApplicable machines Any Hot-Air Welding Machines or Ultrasonic Wave Welding Apparatuses.Environmental Standards ... , diving suit, raincoats, rain caps, down wear, ski boot, vehicle shrouds, skip shrouds, military waterproof and cold protection ...