Airbag Welding Airbag Welding - Ultrasonic Seam Machine - Cheersonic Airbags are typically made from woven fabric, which may be coated or uncoated but must be impermeable to gases and flame resistant. Nylon textiles such as Nylon (polyamide) 6.6 are among the most common fabrics used to weave airbag cushions for general manufacturing and automotive applications. Ultrasonic airbag welding means the cohesive bonding of thermoplastic fabrics through internal friction, heating [...]