Teflon™ coatings are available in both powder and liquid form and are applied using an electrostatic powder gun or HVLP spray gun. Surface preparation is critical. Using a sandblasting process we are able to ensure a clean and well etched surface for Teflon™ to adhere to. Once applied Teflon™ coatings are baked at medium to high temperatures to allow the coatings to cure resulting in a tough, inert finish. The versatility of Teflon™ coatings allows for almost unlimited applications.
Teflon™ Coating Properties
A Teflon™ coating will release most materials it comes into contact with and is used within the food, paper, packing and moulding industries for this reason. Some of the advantages are reduced down time in cleaning and increased quality and product output. Commonly coated parts are heat-sealing bars, cutting blades, baking trays and moulds. Teflon™ coatings are US and/or EU food contact Approved.
As well as being used as a non-stick Teflon™ coatings can be used as a dry lubricant on mating surfaces. In this instance Teflon™ allows for a clean, oil free environment and reduces mechanical wear. Used in the Automotive, Aerospace and Military Industries example applications include hinges, rails, pistons, gears, seals, threads bearing heavy load and cutting blades.
Overview of performance properties
- Low Friction
- Cryogenically Stable
- Heat Resistance
- Unique Electrical Properties
- Chemical Resistance
Surfaces that Teflon™ coatings can be applied to
The history of Teflon® Coatings.
Teflon™ is simply the brand name for non-stick coatings manufactured by the DuPont Co. It is a Polytetrafluoroethylene or as we more commonly know it PTFE.
Teflon™ was mistakenly discovered by American chemist Roy Plunkett in 1938 whilst he was working in the laboratories of E.I. du Pont de Nemours and Company. Following the discovery of the non-stick product the company went on to register and trademark it in 1945 and soon formed a partnership with General Motors. This strategic partnership resulted in them producing 900 tons of Teflon™ per year with one of its uses being in the Manhattan Project. Here General Motors used Teflon™ coatings to be applied to valves, seals and pipes that contained harmful chemicals.
The use of Teflon™ evolved when in 1954 it was applied to a saucepan by French engineer Marc Grégoire. He went on to successfully create the first Teflon-coated, non-stick pans under the brand which has now become a household name: Tefal. Cookware is now commonly associated with the application of Teflon™ but over time other sectors, including the Aerospace, Automotive, Petrochemical and Electrical industries, have come to recognise how it’s unique properties can benefit their processes.
As technologies have developed more PTFE-based formulas have come to market and so a wide range of PTFE products are now available outside of the brand name Teflon™.