Important Announcement

Dear Customers , specifiers and suppliers, Allplastics Engineering is providing a range of custom made acrylic; polycarbonate and PETG screens and barriers for a diverse range of healthcare and business centres. Due to COVID restrictions announced by the New South Wales government on Saturday the 17th of July we request that all visitors to our showroom be restricted to manufacturing related enquiries and with appointments. All orders need to be picked by "call and collect without contact" from our warehouse only. All couriers to observe social distancing and QR code regulations. Together we will get through this.

  • Opening Hours: 8:30am - 5pm weekdays and 9am - 2pm Saturdays
  • Email Enquiry
  • Allplastics Sydney NSW
  • Allplastics on Instagram Allplastics on Facebook Allplastics on Twitter Allplastics on Linkdin Allplastics on Pinterest Allplastics on Google+

PTFE (Teflon™) is 80 Years Old!


Did you know that one of the most commonly used polymers in recent decades was accidently discovered in 1938? PTFE (commonly known as Teflon™) was a result of an attempt by Roy Plunkett, of the New Jersey laboratories of DuPont, to make a new chlorofluorocarbon refrigerant.

During this process the tetrafluoraethylene gas in its pressure bottle stopped flowing before the bottle’s weight had dropped to the point of signaling “empty”. Plunkett was measuring the amount of gas by weighing the bottle and became curious as to the source of the weight.


He finally resorted to sawing the bottle apart. The bottle’s interior was coated with a waxy white material that was very slippery. Once analyzed it was shown to be perfluoroethylene.

Kinetic Chemicals patented the new fluorinated plastic in 1941, and registered the Teflon™ trademark in 1945.

By 1948, DuPont, which formed Kinetic Chemicals, in partnership with General Motors, was producing over 900 tons of Teflon™ brand PTFE per year.

Over the next decade, Teflon™ was used as coating for non-stick cookware becoming a household name with patented brands such as Tefal and Happy Pan.

Due to its excellent dielectric properties, especially at high radio frequencies, it was used as an insulator in connector assemblies and cables; and in printed circuit boards used at microwave frequencies.

In industrial applications, owing to its low friction and high chemical resistance, PTFE is used for bushes, washers, gaskets, seals, slide plates, valve seats, tooling pins and much more…..

Allplastics Engineering has been machining PTFE components over the last 44 years for a diverse range of industries including food, packaging, pharmaceutical, chemical, materials handling and transport.

For special applications where virgin PTFE is not suitable, Allplastics can provide glass filled, carbon filled and bronze filled PTFE.

If the PTFE is required to be bonded to steel a chemically etched surface can be requested on one side of the sheet.

Key Features


  • Superb chemical resistance
  • High temperature use 260°C
  • Lowest co-efficient of friction
  • Physiologically inert
  • Excellent electrical properties
  • Can deform (flow) under high loads
  • B/U washers
  • Gaskets
  • O Rings
  • Chemical lines
  • Slide plates
  • Insulators
  • Glide rings & bushes
  • Tooling pins
  • Valve seats


About Us

ISO Certificate ISO 9001:2015 AU1506

Allplastics Engineering Pty Ltd is a privately owned Australian business specialising in the machining, fabrication and supply of polymer/ plastic materials for industrial, building and architectural applications
more about us >>

Our Memberships



ccofcNSW Business Chambercovid-safe-badge

Contact us

  • Email Enquiry
  • Tel: (02) 8038 2000
  • Fax: (02) 9417 6169
  • Address:  Unit 20/ 380 Eastern Valley Way, Chatswood, NSW 2067.
  • Opening Hours:
    Weekdays: 8:30am - 5pm
    Saturdays: 9am - 2pm

Allplastics on Instagram Allplastics on Facebook Allplastics on Twitter Allplastics on Linkdin Allplastics on Pinterest Allplastics on Google+

review us on Google