The performance characteristics of Non-Metallic Expansion Joint Cover are mainly reflected in the following aspects:
High temperature resistance：
The non-metallic expansion joint skin can withstand high working temperatures, and the temperature resistance range can range from several hundred degrees Celsius to thousands degrees Celsius according to different materials. For example, silicone skins typically withstand temperatures up to about 300°C., while fluorotape skins can withstand higher temperatures up to 1200°C.
Corrosion resistance：
Skin materials such as fluororubber, polytetrafluoroethylene (PTFE), silica gel, etc. have good chemical stability, can resist a variety of corrosive media, and are suitable for chemical industry, petrochemical industry and other industrial fields.
Noise and vibration reduction：
The softness of non-metallic materials helps absorb vibration and noise in piping systems, reducing mechanical noise and reducing vibration transmission.
Multidirectional compensation：
Non-metallic expansion joints can provide displacement compensation in multiple directions, including axial, transverse, and angular directions, which is especially important for complex piping systems.
No reverse thrust：
Host materials such as fiberglass fabrics and their coated articles do not transmit forces, which means that when using non-metallic expansion joints, large support structures are eliminated and the design of piping systems can be simplified.
Lightweight：
Compared to metal expansion joints, non-metallic expansion joints are lighter in weight, which reduces installation costs and requirements for support structures.
Small fluid resistance：
The smooth skin inside reduces friction as fluid passes through, reducing energy losses.
Installation error compensation：
Non-metallic expansion joints can compensate for minor errors caused by inaccurate installation, which is difficult to do with metal corrugated expansion joints.
Sealing performance：
The skin material has good sealing properties and can prevent gas or liquid leakage.
Thermal insulation and energy saving：
Some non-metallic expansion joint skins can have built-in insulation to help maintain the temperature inside the pipe and reduce energy loss.
Flexibility and ductility：
The non-metallic material gives the expansion joint good flexibility and ductility, allowing it to adapt to the dynamic changes of the piping system.
Anti-aging and weather resistance：
Specific skin materials such as fluoroadhesive tape have excellent weather resistance and are suitable for outdoor use.
When choosing a non-metallic expansion joint skin, it is necessary to determine the most suitable material and design based on the working conditions of the specific application, such as temperature, pressure, media type, and environmental conditions.