We'll find your PMMA / Acrylic requirement

Using our extensive polymer network of over 350 suppliers

Find the exact grade you require

Improve on your current price

Get the material you need faster

PMMA / Acrylic

Polymethyl methacrylate

PMMA is a clear engineering plastic often used as a replacement for glass and it also has outstanding surface hardness.

Call us today on 0141 952 1900 or click to email

“Hardie Polymers have been a preferred supplier to Canyon now for over 20 years: what I like most is their attitude – make it happen with no drama!

The key values that we need from all our suppliers are: competitiveness, good communication and integrity – and Hardies tick the box on all three.

I would definitely recommend them.”

Canyon Europe, Belfast

Physical Properties

PMMA (Polymethyl methacrylate) is glass clear with high light transmission and good optical quality.

Extremely long service life with high resistance to UV light and weathering.

Strong and scratch proof but also brittle It also has unlimited colouring potential.

PMMA shows the greatest surface hardness of all the thermoplastics.

It can be fabricated by means of all thermoforming methods, and therefore offers huge creative scope. PMMA is 100% recyclable.

Susceptible to stress cracking.

Chemical Properties

Resistant to weak acids and alkaline solutions, grease and oil.

Not resistant to strong acids and alkaline solutions, chlorinated hydrocarbons.

Typical Applications

Glazing, safety screens, lenses, light fittings, displays, baths, dental fittings, bone cement, aquariums, automotive rear lighting clusters, light guides.

Structure

Polymethyl methacrylate (PMMA) is a typical amorphous thermoplastic.

Identification

Polymethyl methacrylate (PMMA) is highly flammable and burns with a bright and smoky crackling flame even after it is moved away from the source of ignition. Gives off a sweet and fruity smell.

Useful Data

Density – 1.18 g/cm ³

Pre-Drying – 4 hours at 80°C in a dehumidifying hot air drier. Very prone to water absorption.

Melt temperature – 220 – 250°C

Mould Temperature – 40-80°C

Shrinkage – 0.3-0.7%

Trade Names And Manufacturers

Arkema – Plexiglas / Altuglas

LG MMA Corp. – LG

Plaskolite – Optix

Lucite – Acrypet / Diakon

Cast Acrylic such as Perspex and Plexiglas are also available in sheet and rod form and suitable for machining and thermoforming.

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

History

The first acrylic acid was created in 1843. In 1865 Methacrylic acid, derived from acrylic acid, was formulated and in 1877 the German chemist Wilhelm Rudolph Fittig, discovered the polymerization process that turned methyl methacrylate into polymethyl methacrylate. In 1933, the brand name ‘Plexiglas’ was patented and registered by another German chemist, Otto Röhm.

In 1936 Imperial Chemical Industries, the famous old ICI, (now Lucite) started production of acrylic safety glass. During the Second World War, PMMA was often used instead of glass in gun turrets and windshields for aircraft, proving a much safer material in battle situations for our airmen.

More about PMMA or Acrylic

Related articles by Dr Charlie Geddes

What are Engineering Thermoplastics?

Let it snow, let it snow…

Transparent ABS can be a clear winner


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

Acrypet®
LG PMMA
Plexiglas®
Optix®

Awards