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Halar is nothing but a brand name for ECTFE (Ethylene Chlorotrifluoroethylene). It is a fluorocarbon based fluoropolymer, a kind of plastic. It provides high impact strength, chemical and corrosion resistance over a wide temperature range of -76˚C to 150˚C.
Coatings made from HALAR provide excellent chemical resistance and electrical properties to equipments that are operating at the temperatures up to 300˚F. These are best suited for full vacuum applications.
Applications of HALAR Coatings
- HALAR coatings are used to minimize wear in high frictional applications, where dimensional stability is a requirement.
- Typical applications include bearings, cams, valve seals, semi conductor tooling and cables.
- This coating can be used as bearing surface for machine tools.
- Can be used in electrical insulators due to high resistivity and low dielectric constant.
- Can be bonded by using the same type of epoxy resin or Ultra Sonics as other fluoropolymers.
- Chemical properties of HALAR coating resembles ETFE but with lower melting points.
HALAR Coatings are ideal for Chemical applications
HALAR is one of the most chemical resistant polymers that are available today. Some luminous characteristics of HALAR which meets the industrial demanding applications:
- Excellent release properties
- Extremely smooth surface
- Dimensionally stable
- Low cold flow
- Ideal to operate at the temperatures (up to 300˚F)
- Mechanically tough with excellent abrasion and impact resistance
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PVDF, Polyvinyledene Fluoride is a highly non reactive and pure thermoplastic fluoropolymer. It is also called as HYLAR.
PVDF is a special plastic material from the fluoropolymer family. PVDF coating is a special purpose coating that can be used in various applications that require highest purity, strength, resistance to solvents, acids, bases and for low smoke generation during a fire event.
PVDF coatings are easy to melt when compared with other fluoropolymers because of its low melting point of around 177˚C. Also it has a relatively low density and involves low cost when compared with other fluoropolymers.
PVDF can be injected, molded or welded and most commonly used in chemical, semi conductor, medical and defense industries as well as in lithium ion batteries.
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