The difference between transparent and milky white PTFE tube

Q: How many treatments are available for PTFE pipes? Why are some transparent and some opaque? Which one is good?

A1: The transparent one is F46, and the opaque one is F4. The corrosion resistance is similar, while the temperature resistance is much better, F4. F46 can be welded, F4 can not be welded, but hot melt pressure welding can also be, can also be heated edge, with a sleeve flange connection.

A2: Teflon tube molding mainly includes winding and firing molding, F4 plate welding, guiding method, extrusion method, etc.

A3: PTFE tubes are usually compressed or extruded.

A4: Pure polytetrafluoroethylene (PTFE) is white and meltable polytetrafluoroethylene (PFA) is transparent. Both are fluorinated plastics, but not the same. It's hard to say which is better, and this is where it comes in, but one thing is that PFA is better at plastic molding than PTFE, and PFA is better when it comes to complex equipment and valve lining. The corrosion resistance of PFA and PTFE is similar, and the high temperature performance of PFA is better than PTFE.

A5: Teflon is white, transparent is F46 or other materials, F4 pipe has winding and sintering, pushing material, turning and other manufacturing methods, basically in the form of steel liner, cost performance is the highest, production is the most simple, investment is the least. At the same time, there is the least waste. What is the difference between the processing technology of F46 pipe and ordinary plastic pipe? The difference lies in the material. Melting point above 400 degrees, good plasticity, anti - aging and corrosion properties. At the same time, the price is also very high, above 100,000 tons. At present, there are three domestic manufacturers aifu, Sichuan Chenguang, Zhejiang Juhua and Zhejiang Xingteng Chemical Co., LTD.