Which injection grade of Acetal (POM) are you looking for ?

We'll search our vast network of over 350 supply partners to find it for you - and at the best price.

Request a quote

Find the exact grade you require

Improve on your current price

Get the material you need faster

Acetal (POM) Supplier UK

Polyacetal or Acetal

POM / Acetal is a fabulously tough engineering polymer also with great anti-friction properties.

Call us today on 0141 952 1900 or click to email

“I find Hardie Polymers very easy to deal with and always get an immediate response so I know straightaway that someone is working on my request. Bartosz is my main contact and he is brilliant to deal with.

It is very rare that they cannot source a polymer that I request – our requirements can come at quite short notice and they always help out where possible.

I have absolutely no hesitation in recommending Hardie Polymers. It is always a pleasure to do business with them.”

Opus International Products Limited, Warwick

Physical Properties

  • Very hard, stiff and tough
  • Natural lubricity
  • High heat resistance
  • High abrasion resistance
  • Low moisture absorption
  • Great anti friction properties
  • Unbreakable down to -40°C

Chemical Properties

Resistant to weak acids and alkaline solutions, fuels, benzene, oils and alcohols.
Not resistant to strong acids.

Typical Applications

  • Engineering components
  • Gear wheels
  • Ski bindings
  • Locks
  • Fasteners
  • Fan wheels, springs, chains and nuts
  • Insulators
  • Bobbins and Connectors etc
  • Medical applications such as inhalers


Partially crystalline

Different manufacturing processes are used to produce the homopolymer and copolymer versions of POM.


Highly flammable, gives off a bluish flame and then drips and continues to burn. Smells like formaldehyde when extinguished.

Useful data

Density – 1.41-1.42 g/cm ³

Pre-Drying – Not necessary unless it has become moist. Then 4 hours at 100°C in a dehumidifying hot air drier

Melt temperature – 205-215 °C

Mould Temperature – 40-120 °C

Shrinkage – Approx 2 %. Allow 24 hours for full shrinkage to occur.

Trade names and manufacturers

DuPont – Delrin

Formosa Corporation -Formocon

Celanese – Hostaform

Mitsubishi Engineering Plastics – Iupital

Korea Engineering Plastics – Kepital

LG Chem – Lucel

Grupa Azoty – Tarnoform

BASF – Ultraform

Hardie Polymers can help source grades from all of the above manufacturers



The worlds first Acetal polymer was introduced in 1960 by DuPont and was named Delrin ®. It is widely used in many different applications today such as automotive, industrial, electronic and consumer goods.

Delrin® is the registered trademark for DuPont’s brand of acetal homopolymer resin which is also commonly referred to as polyoxymethylene (POM).

Around two years later in 1962, Polycetal copolymer was invented by Celanese. Many other companies around the world now produce this material – please refer to the list below for examples.

More about Polyacetal

Articles by Dr Charlie Geddes

Polyacetal (POM): When to Select Homopolymer or Copolymer?

Does POM stand for ‘Plastics Outperforming Metals’ ?

What determines friction between thermoplastic components?

How Easy is it to See Through the Optical Properties of Thermoplastics?

Creepy things can happen with long term loading of thermoplastics.

What are Engineering Thermoplastics?

Our longstanding partnerships allow us to specialise in sourcing and compounding most grades of engineering polymers. All brand names listed are trademarks of the manufacturers and we are not an authorised distributor for these manufacturers. We only supply prime grades in original packaging with the manufacturers documentation.

® – Trademarks owned or used by the producers.
™ – Registered in the U.S. Patent and Trademark Office (status in the U.S. only, registration status in other geographies may be different)

We have supplied



Request a Quote

  • Our team are available from 8am-5pm and we always aim to get back to you the same day. If you would rather contact us immediately please join us on live chat
    or give us a call on 0141 952 1900.
  • This field is for validation purposes and should be left unchanged.