One .Sewing bonding: This is one of the strongest bonding methods, but the sewing thread is easily damaged. Sewing bonding is often applied to PVC coated polyester filament fabrics in conjunction with thermal bonding, in order to achieve greater strength and, if used outdoors, to be protected by a PVC cover. Sewing bonding is not suitable for PTFE coated fiberglass fabrics, and for all other brittle cloth materials.

Two .Heat sealing bonding: Hot welding is the heat bonding seam, and the coating on the upper layer of the fabric is melted, then the pressure is applied and the adhesive seam is cooled. Heat can be obtained by blowing hot air into the membrane material, or by touching the membrane material to the heating object, or by high frequency electromagnetic waves. Heat and glue are used in PVC coated polyester filament fabrics and PTFE coated fiberglass fabrics. For PTFE coated fiberglass fabrics, a different material is required in the inner layer, since PTFE cannot be hot-melted by itself.

Three.Mechanical bonding: Although sewing and heat sealing have been used extensively in membrane processing plants, mechanical bonding is sometimes applied. Mechanical adhesion generally has three kinds of forms: 1. A rope is buried at the edge of the two diaphragm and a splint is clamped on the overlapping positions of the two diaphragms. This splint requires discontinuity and can be moved. 2. A rope is buried at the edge of the two diaphragm and two buried ropes are embedded in an aluminum splint with two openings (like a dumbbell horizontally placed). The aluminum splint is also discontinuous. This bonding method is less water-resistant than the first. 3. One of the simplest methods is to make a number of diaphragms in a row and fix them. This is the easiest and quickest way to install, but not waterproof.