What is ECTFE coating?
ECTFE is an engineering thermoplastic fluoropolymer used as a material for coating applications. It is known under the trade name HALAR®. ECTFE coatings are often chosen for applications where the greatest chemical resistance is required, including operating at high temperatures.
What is halar made of?
HALAR® is essentially a 1:1 alternating copolymer of ethylene and chlorotrifluoro-ethylene (ECTFE). By weight, it contains about 80% ECTFE, one of the most chemically resistant materials that can be used to make a polymer.
Is ECTFE a Pfas?
ECTFE and ETFE are both partially fluorinated polymers. Their chemical difference resides in the chlorine atoms in ECTFE, which are substituted by a fluorine atom in the structure of ETFE.
What is Halar coating?
Halar® Coating Process Halar® / ECTFE Coatings resist a wide variety of corrosive chemicals and organic solvents, including strong acids, chlorine, and aqueous caustics making them ideal for vessels and process equipment for many industries including the petrochemical industry.
What is halar ECTFE?
Halar® ECTFE is a partially fluorinated semi-crystalline polymer offering a unique combination of properties for highly demanding industries. It is widely used in anti-corrosion applications as a lining or in self-supporting constructions (piping).
What is PFA coating?
PFA – perfluoroalkoxy – is a co-polymer product of PTFE. The key advantage of PFA is its melt processability. This means that when cured, the constituents flow into one another, therefore the level of porosity at the surface of the cured coating is significantly reduced.
Is PTFE considered PFAS?
PTFE, or polytetrafluoroethylene (promise you don’t need to remember that), belongs to a subgroup of PFAS called fluorinated polymers, and PTFE is by far the most popular one in the group; it makes up approximately half the market. One of the most familiar uses is in Teflon, but that’s just one of its applications.
What is halar Ectfe?
Is halar a Teflon?
Halar® can be applied in a much thicker coating than Teflon™. Typical coatings range from 5 to 60 mils (0.005” to 0.06”) in thickness, making them several times thicker than a Teflon™ coating. However, the thickness of a Halar® coating is limited by the thermal mass of the object being coated.
Which is better PFA or PTFE?
Differences between PTFE and PFA PFA is superior to PTFE in terms of flexibility particularly when it comes to tubing applications. On the other hand, PFA’s flex life (i.e., capacity to endure repetitive folding) is lower than PTFE. PTFE is slightly more resistant to heat than PFA.
Is PFA and PTFE the same?
PFA is more flexible but has a lower flex-life, so it isn’t as capable of enduring repetitive folding. PTFE has a slightly higher heat resistance but lacks when compared with the flow, creep resistance, and thermal stability. The melting points of PFA and PTFE are 260°C and 327°C respectively.
What is ECTFE and what are its properties?
ECTFE has good electrical insulator properties, i.e. high resistivity and a low dielectric constant as well as a low dissipation factor allowing its use for wire and cable primary and secondary jacketing. Similar to other fluoropolymers, ECTFE has good UV resistance, in particular against UV-A and UV-B allowing its use for outdoor applications.
What is ECTFE fabric backed sheet?
Extrusion of ECTFE fabric backed sheets and subsequent fabrication to vessels, pipes or valves is used in the chemical industry. Typical sheet thickness is around 2,3 mm but can go up to 4 mm. Thick sheets are compression molded and can go up to 50 mm in thickness.
Does ECTFE have low permeation?
ECTFE’s chemical structure gives it very low permeation to simple gases such as hydrogen, oxygen, or nitrogen. ECTFE’s permeation is lower than other polymers such as HDPE, ETFE, and PFA, and is typically further reduced for more complex molecules.
What are ECTFE fibers used for?
Another application of ECTFE fibers is a so-called “Halar veil” that can be used to construct pipes or valves for use in corrosive environments such as chloralkali facilities.