PTFE raw material tape, also known as PTFE sealing tape. The reason why it is called raw material belt is because it is related to the processing technology. The polytetrafluoroethylene dispersion resin does not exceed 370 degrees in the process of batching, calendering and heating and stretching. The unsintered belt is called raw material belt.
The PTFE raw material belt is the residual deformation of the resin under the action of compressive force. The bar or strip is first formed by pressing forming method, and then placed on a roller press. The pressure, under the action of the roller pressure, spreads into a thin strip having a certain thickness and width, and finally removes the extrusion aid to obtain a raw material strip.
PTFE raw material tape is an excellent sealing material for corrosion resistance and high temperature resistance. It can be used as sealing material for water pipes, corrosive fluid conveying pipes and steam pipe joints. Also known as sealing tape, stop tape. It is a strip-shaped product which is formed by extrusion and calendering of a polytetrafluoroethylene dispersion resin without any additives. It is white, smooth in surface, uniform in texture, excellent in heat resistance and corrosion resistance, and self-adhesive, good fit and good sealing. It can be widely used in pipe thread sealing of pure oxygen, gas, strong oxidant, strong corrosive medium and high temperature steam, as well as filling and sealing of pumps, valves and equipment with complicated shapes.
The Teflon tape has many excellent properties. Such as a very low coefficient of friction, non-stick surface properties, a wide range of operating temperatures -180 ° C -260 ° C, excellent aging and chemical resistance and so on.
The expanded PTFE raw material belt is made of 100% PTFE as a raw material, and has a mesh-like expanded structure composed of micro-elastic fibers and joints. The expanded PTFE raw material belt has the characteristics of good toughness, high longitudinal strength and easy deformation in the transverse direction. It is ideal for sealing on discs and threads. However, it cannot be used in contact with high concentrations of oxygen or liquid oxygen. The expanded polytetrafluoroethylene raw material tape is mainly used for the sealing of the disk and the threaded mouth.