The rubber plugging airbag material should be the same as the corresponding hull outer plate material. Its structure can be divided into tubular rolling type and tubular rolling type.

Sealing plates should be set at both ends of the rubber plugging airbag, and gradually tilt away. The aspect ratio of the inclined end should be greater than 3:1, and the length should be planned well. If there are composite plates, the specifications of the end composite plates should be widened and strengthened.

The end points of the rubber plugging airbags should fall on the structural ribs inside the hull, such as ribs and ribs. If the rubber plugging air bag has a composite plate, such as two 50~75mm narrow edge flat steel or wide edge flat steel with welding holes, the composite plate and the composite plate are welded, and the composite plate is separated from the hull plate with 1.0~1.5mm copper plate. With the positive development of preassembly engineering, rubber leak-blocking airbags are generally preassembled on the cross section. Therefore, the fender material should leave a section of 1.0~1.2m at the large joint of the bulk section of the berth. After checking the sealing performance of the section joint, the section fender material can be equipped. The transverse and longitudinal steel bars in the rubber plugging airbag are generally not welded with the outer plate of the hull, leaving a gap of 8 to 10mm.