TECHNICAL INFORMATION

General : Corrosion resistance : Physical properties

 

  Fluoroplastics :The Perfect Solution to Your Design Problems
  PTFE - PFA - FEP - ETFE - PVDF
Problem Solution
Adhesion, Release Possess extremely low surface energy in the solid state, thus providing an excellent antistick, nonwetting contact surface.
Atmospheric Aging Are transparent to ultraviolet light and extremely resistant to oxidation, surface fouling, discoloration, and embrittlement.
Biodegradation Are inert to enzymic and microbiological attack because the pure polymer does not provide nourishment or porosity for these growths.
Low-Temperature Service Retain their excellent properties even at cryogenic temperatures. In addition, their impact resistance at these temperatures exceeds that of most other polymers.
Contamination Except for specialized grades, fluoropolymers are chemically inert and pure. They generally contain no additives-plasticizers, stabilizers, lubricants, or antioxidants which could contaminate process fluids.
Friction and Wear Feature one of the lowest coefficients of friction of any solid material. Their abrasion resistance is adaptable to demanding environments by using inorganic fillers, such as glass fiber, graphite, and powdered metals.
Heat Retain their properties after exposure to temperatures beyond the limit of almost all other thermoplastics and elastomers. Depending on the end-use requirements, these resins are often rated for continuous service at temperatures as high as 260 deg.C. In certain cases, they can also withstand short excursions to higher temperatures.
Humidity Are extremely hydrophobic and completely resistant to hydrolysis. They are good barriers to water permeation; their typical properties and dimensional stability remain unchanged even after year-long immersion in water.
Light Stability Have one of the lowest refractive indexes. They do not change their visual appearance after exposure to light ranging from ultraviolet to infrared.
Corrosion Resist even the most aggressive organic and inorganic chemicals and solvents over a broad temperature range.
Dielectrics Possess high dielectric strength, a low dielectric constant, low loss factors, and extremely high specific resistance. Furthermore, they surpass most materials in their level and stability of dielectric properties over a broad range of environmental conditions.
Flame Resistance Offer remarkable resistance to high temperature and flames because they have very high melting points and auto-ignition temperatures, as well as exceptional thermal degradation thresholds. Moreover, their flame propagation characteristics, such as rate of heat release and smoke generation, are very low.
Long Service Life Exhibit outstanding retention of properties after aging, even at high temperatures and in the presence of solvents, oils, oxidizing agents, ultraviolet light, and other environmental agents. In addition, because they do not use any leachable or degradable stabilizing additives,they offer an important safety advantage when designing products for long service life.