A Guide to Halar Coating
Halar coating, known commonly as ECTFE, has several uses and varying industrial applications. This coating is a particular kind of plastic, and Halar is one of the most common brand names ECTFE is sold under. The producer of this type of coating is Solvay Solexis, but many companies, like Toefco Engineered Coating Systems, sell Halar coating and provide application services for it.
The most common use for ECTFE is in exhaust ducts, process equipment, and vessels. It is also used commonly in bearings, valve seats, cams, electrical insulation, and semiconductor tooling, as well as cables and wires. The best thing about it is the exceptionally smooth surface, which cuts down on the possibility of pinholes developing in the coating. It also reduces the buildup of particles within the system.
Here are the basic properties and benefits of using Halar coating:
- Resistant to chemicals and corrosion at temperatures of -105 degrees Fahrenheit up to +300 degrees Fahrenheit.
- Very strong, even in high impact conditions.
- Minimizes wear in cases where there is a lot of friction and there is a need for dimensional stability.
- High level of resistivity.
- Low dielectric constant
- Similar to PTFE (sold under the Teflon name), although it melts at lower temperatures
- 1:1 chemical structure
Aside from these varying properties, another reason Halar coating has so many different applications is the fact that it comes in so many different forms, including:
- Halar veil, which is used for valves or pipes
There is also a nonwoven fabric version of this ECTFE, which is made by melt blowing the plastic. The properties are similar to Halar coating, except that the fabric is porous and has a large surface area.
Because Halar coating resists acids/bases and solvents, it is uniquely able to protect against corrosion from a number of different types of materials, including hydrofluoric, nitric, and sulfuric acids, ozone, hydrogen and ammonium hydroxides, and alkaline chemistries.
Toefco provides Halar coating. Their experts can help you decide if ECTFE is the right type of coating for your project. Only someone who works with these types of coatings everyday will understand the subtle differences between them. Check with their engineers to find out if Halar is the right solution to your industrial coating needs. They will also be able to recommend a better material if there is something else out there that will suit your needs more accurately.