The main benefit of PTFE coatings (such as Teflon) is the non-stick properties with the material, which means applications like commercial bakeware have excellent non-stick / release properties and are a breeze to completely clean.
We’ve created a range of PTFE coating systems with many good things about suit most applications. The part the coating is usually to be useful for along with the operating conditions will define picking a the right coating for the task.
On this blog, we explore a few of the benefits in more detail.
NON-STICK AND RELEASE
A PTFE coating placed on an important part will offer excellent non-stick/release properties and is also a breeze to scrub. This sort of coating can also be excellent at preventing both cold and warm products from permanently adhering to the substrate and so is trusted in the cookware, confectionery, food processing and bakery industries. PTFE coatings may also be utilized for non-stick inside the packaging, heat sealing, moulding, automotive, aerospace, chemical and pharmaceutical industries.
NON-WETTING
PTFE surfaces are hydrophobic and oleophobic, and won’t readily wet. This enables the material to self-clean. For the semiconductor industry, this property is vital mainly because it allows all chemical media to operate off and become collected.
TEMPERATURE RESISTANCE
PTFE coatings can service arduous application conditions involving extremes of temperature. They are able to remain stable at advanced temperatures of +260°C as well as for short periods at +290°C. PTFE can be utilized on extrusion dies and sealing of plastic/elastomers where anything else may degrade or cause clogging of molten material. These coatings can also perform at cryogenic temperatures and may remain stable at -270°C.
LOW FRICTION AND ABRASION RESISTANCE
PTFE coated surfaces reduce friction which enable it to achieve very low coefficients of friction, typically from about 0.04 to 0.15. Where oils and grease evaporate at elevated temperatures PTFE remains which is therefore perfect for shafts, bearing surfaces, moving mechanisms, stud bolts and fasteners. For added abrasion resistance and increased wear life, this sort of coating might be reinforced by having fillers through combining using a metal sprayed base layer.
CORROSION AND CHEMICAL RESISTANCE
PTFE is inherently resistant to attack from most chemicals so when coupled with other fluoropolymers like FEP and PFA greatly improves the lifetime of the component. PTFE applied being a surface coating will increase the corrosion resistance from the component and will be also enhanced with the use of primers, other pre-treatments such as plating and phosphating. Stud bolts and fasteners, valves, pumps, pipe clamps and connectors all make use of these types of coatings.
ELECTRICAL PROPERTIES
PTFE has a high dielectric strength, a minimal dissipation factor, insulating and high surface resistivity, giving protection and uses in many electrical applications. Our coatings can also be designed to become conductive and used as an antistatic coating. Light fittings, connectors, cable guides and portable electrical equipment all make use of PTFE.
ANTI-GALLING
PTFE coatings prevent galling and present excellent bearing properties. Mating surfaces and rotating parts benefit from this coating that assist provide minimal maintenance downtime.
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