First of all, the cylinders are made by winding glass wool. The production technology is practically waste-free. The advantages of reinforced plastics are high corrosion - and chemical resistance, specific strength (3 times stronger than steel and 5 times lighter) and damping ability. The design of the cylinder is a liner and a shell of composite material on the cylindrical surface of the liner, or over the entire surface.
The liner is the inner sealing shell of the cylinder, which can carry part of the load, made of aluminum or of corrosion-resistant steels. Composite material for composite cylinders is formed by winding a reinforcing material impregnated with a binder onto a liner or technological mandrel, followed by heat treatment (polymerization). The material of the braid of the container may consist of carbon fiber, organoplastic, basalt fiber, fiberglass or composite fiber based on some of the above fibers. Epoxy resin is used as a hardener. This winding is experiencing the main load during operation, while the liner is only formative.