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WHAT IS PLEXIGLAS®?

As one of the highest-grade and most adaptable plastics in the world, the branded acrylic PLEXIGLAS® is always in demand when high requirements are placed on a material: With its versatile properties, Röhm’s PLEXIGLAS® product family enables the development of new technologies, extraordinary design, visionary architecture and sustainable product and project design.

How the PLEXIGLAS® brand name came about

The plastics research team of Dr Otto Röhm of Röhm & Haas, now Röhm GmbH, derived the name PLEXIGLAS® from PLEXIGUM, the existing name of the company’s plastic resins and solutions. Fascinated by having invented an “organic glass” with poly(methyl methacrylate) (PMMA) , they called it PLEXIGLAS®.

The Acrylic Products business line of Röhm GmbH is a global producer of PMMA products marketed under the PLEXIGLAS® registered trademark in Europe, Asia, Africa, and Australia and under the ACRYLITE® brand name in the Americas.

PLEXIGLAS®—commonplace and yet extraordinary

Ever since the material was developed more than 90 years ago by Dr. Otto Röhm and his research team, it has been used in a wide range of projects. Applications designed with PLEXIGLAS® are often so striking that they immediately catch the eye: examples are illuminated stadium facades, gigantic aquariums, and spectacular pools. But PLEXIGLAS® can equally be found in high-quality furniture and kitchen back walls, the light guide film in a smart phone display, or car taillight covers. Taking these elements largely for granted, we hardly ever stop to think about the material from which they are produced.

PLEXIGLAS® acrylic is no ordinary plastic, however – it is a real all-rounder with fascinating properties and abilities.

What kind of a plastic is PLEXIGLAS®?

The chemical name of the material, which was registered under the PLEXIGLAS® brand in 1933, is polymethyl methacrylate, or PMMA. It is a stable, transparent and impact-resistant polymer.

The product portfolio has been continuously expanded over the centuries. Today, cast and extruded solid sheets, multi-skin and corrugated sheets as well as tubes, rods, and films in a wide range of colors and surfaces and with special properties are offered under the PLEXIGLAS® brand name. Solid, multi-skin and corrugated sheets are also available as the recycled variant PLEXIGLAS® proTerra, which features a high proportion of recycled material while maintaining the proven brand quality.

PLEXIGLAS® solid sheets and blocks: the all-rounders

Sheets—also commonly referred to as panels—and blocks made of PLEXIGLAS® are the starting point for a wide variety of potential applications. Thanks to their considerable durability and resistance to UV and weathering, sheets and blocks can be used in interior and exterior applications alike. Solid sheets are produced using two different methods: PLEXIGLAS® XT is extruded and PLEXIGLAS® GS is cast. Because their manufacturing processes differ, the two types are characterized by different properties, offering a range of advantages for various applications.

PLEXIGLAS® multi-skin sheets for exceptional stability

Multi-skin sheets, also frequently referred to as hollow sheets or twin-wall sheets, are hollow-profile materials consisting of parallel, external sheets (walls). These walls are joined together via connective ribbing. In between are hollow chambers. The unique structure of PLEXIGLAS® multi-skin sheets allows using them as high-performance thermal insulators and allows them to bear considerable loads, while weighing relatively little themselves. Uses include patio roofs, greenhouses, carports, and partitions.

PLEXIGLAS® corrugated sheets: the roofing classic

PLEXIGLAS® corrugated sheet, extruded from the branded acrylic glass, are frequently used in exterior roofing such as carports, patios, canopies, etc. These sheets are easy to process and exceptionally convenient to install.

PLEXIGLAS® tubes and rods bring design ideas to life

PLEXIGLAS® tubes can be used to make luminaires, product displays or shop fittings. Rods made of PLEXIGLAS® are also suitable for interior design. Both products can be processed easily and flexibly.

Environmental aspects during production

The section on sustainability offers information on the environmentally friendly production of PLEXIGLAS® acrylic.

Learn more

How is PLEXIGLAS® acrylic manufactured?

There are two different methods: During the manufacturing process of cast PLEXIGLAS®, liquid methyl methacrylate (MMA) is poured between two glass sheets. Under the influence of heat, the liquid MMA then polymerizes, which means it hardens.

Extruded PLEXIGLAS® XT is produced from polymerized methyl methacrylate granulate, which is manufactured by the same company and sold under the same brand name as PLEXIGLAS® molding compounds. This granulate is melted in an extruder and can then be extruded into different shapes, such as solid or multi-skin sheets, rods, or pipes.

Is there a difference between acrylic and PLEXIGLAS®?

Following its invention, the new kind of plastic was so successful that the term “plexiglass” entered the common vernacular. Because of this, “plexiglass” is sometimes used incorrectly or fraudulently, or is placed in the wrong context.

Anyone wishing to plan and construct something of high quality should know the difference between PLEXIGLAS® and acrylic from other manufacturers, however: PLEXIGLAS® is a branded product from Röhm GmbH. The brand guarantees reliably high quality from a product family that meets special requirements. That is why only the original from Röhm can call itself PLEXIGLAS®.

Brand of the century

PLEXIGLAS®, the original from Röhm, has been a “Brand of the Century” since 2007. This title is given to products that stand out thanks to their quality, prominence and availability.

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Properties of PLEXIGLAS® acrylic

As transparent as glass, half as heavy, and free of optical distortion, PLEXIGLAS® acrylic became a sought-after material soon after the trademark was registered in 1933. The branded acrylic is also distinguished by its other material properties:

One of its defining quality features is its extraordinary light transmission of 92 percent in colorless material. This means PLEXIGLAS® lets light pass through, while simultaneously providing protection from the harmful effects of UV radiation.

With UPF 50+ (Ultraviolet Protection Factor), PLEXIGLAS® sheets possess the highest level of UV protection for roofing materials. PLEXIGLAS® acrylic consists entirely of extremely strong and UV-stable molecules. Specialists in the field describe this as a “naturally UV-stable technology”. The advantage is that it does not need to be coated with a UV protection layer, as is the case with many other materials. As a result, the entire material is UV-resistant and not just the surface.

One of the most important quality characteristics of the PLEXIGLAS® branded product is that virtually all clear-transparent solid sheets, multi-skin sheets, corrugated sheets, blocks, tubes and rods do not yellow for a very long period of time and retain their high level of transparency. Röhm even offers a 30-year guarantee for this. In general, the material is extremely robust, durable and weather-resistant, and it still looks like new even after many years.

PLEXIGLAS® acrylic also has many more attractive properties: in its purest form, it is absolutely clear, which means it can be colored very precisely. The solid sheets are currently available in over 80 colors, also with different surfaces and high functionalities. Specially developed variants are extraordinarily good at conducting light, while others are able to withstand extreme pressures, while others provide protection from heat or sound.

PLEXIGLAS® acrylic is 100% recyclable

Using different recycling processes, polymethyl methacrylate (PMMA) – the chemical name for acrylic – can be broken down into its original components, immediately forming pure PMMA again – for example as PLEXIGLAS® proTerra. The method allows PLEXIGLAS® products to be recycled not only in full, but at full quality. This type of circular economy, which is possible only for a very limited number of plastics, saves resources and helps to avoid waste.

Technical information on PLEXIGLAS® acrylic

Technical information, the product range and further service information for professional processors is available in our customer center.

To customer center

PLEXIGLAS® and sustainability

Because of its longevity, the original from Röhm contributes to sustainable product design in many industries. And once it reaches the end of its useful life it is 100 percent recyclable, enabling a circular economy.

Find out more about sustainability

Applications of PLEXIGLAS® acrylic

Ever since the brand was registered 90 years ago, products carrying the PLEXIGLAS® brand have been enhanced continuously thanks to a wealth of expert knowledge and innovative strength. Accordingly, the brand acrylic has become established in many industries, where it has enabled technical progress and improved the properties and appearance of everyday products. Today, PLEXIGLAS® from Röhm continues to offer custom and long-lasting solutions for nearly every sector. The material’s characteristics inspire professionals from design, architecture and technology all over the world in their projects.

Transport

Whether on the road, in the air, or even under water, materials in traffic are subjected to extreme loads. The branded products from PLEXIGLAS® and EUROPLEX® are highly robust and meet the growing requirements in terms of function and design.

Transport

Over many decades, PLEXIGLAS® acrylic from Röhm has proven its worth in aircraft glazing because it withstands the positive pressure in the cabin, double-digit, sub-zero temperatures, and extremely high UV load. Learn more in the market segment brochure PLEXIGLAS® for the Aviation Industry.

Visual communication and shopfitting

Whether standing out in the hustle and bustle of a trade fair or on a shopping street, amazing visitors at events or surprising at product presentations – the sheer variety of possible designs offered by PLEXIGLAS® acrylic allows customers to make their mark in booth construction, shopfitting or illuminated advertising. With its broad variety of colors, shapes, surfaces and functions, it fits every concept.

Visual communication and shopfitting

PLEXIGLAS® acrylic is extremely hard-wearing and weathering resistant, it is also light guiding and available in a wide range of colors; this makes it the ideal material for outdoor signage. A special variant even allows a change of color from black to white.

Lighting

PLEXIGLAS® is a favored material in interior design because PLEXIGLAS® lighting units always create the appropriate ambience—whether with a cozy and discreet atmosphere, accurate spotlighting, or wide-area illumination.

Industrial Construction

Due to its durability and weathering resistance, PLEXIGLAS® is used in a wide variety of structures: In greenhouses, for example, the branded acrylic enables plants to grow faster and more efficiently without wasting energy. Learn more in our market segment brochure PLEXIGLAS® for Greenhouses.

Noise and wind protection

As a wind protection solution, PLEXIGLAS® acrylic ensures that cars can pass over bridges safely. Noise protection walls made of PLEXIGLAS® also protect those living next to roads and railroad lines from traffic noise.

Architecture

The low weight of PLEXIGLAS® acrylic enables the design of intricate facades. An illuminated facade is a fascinating eye-catcher.

Private construction

PLEXIGLAS® acrylic is also a favorite for patio roofs, winter gardens, and balcony cladding. Learn more in the market segment brochure PLEXIGLAS® for Home and Garden.

Interior and shopfitting

PLEXIGLAS® is used wherever high-quality surfaces must be tough as well as visually attractive are needed. PLEXIGLAS® acrylic is also used in private homes, in trade-show booths, sales counters, in private homes, in kitchen fronts or room doors. Learn more in the market segment brochure PLEXIGLAS® for Furniture and Interiors.

Further topics

Approvals

To make it easier for you to obtain approval for the use of PLEXIGLAS®, we will be pleased to provide you with copies of such documents.

Fire Behavior

PLEXIGLAS® has outstanding fire properties, which are retained throughout the entire lifetime of the material.

Processing PLEXIGLAS®

PLEXIGLAS® can be processed in many ways. Whether cutting, joining or forming, detailed instructions and information can be found in our service section "Processing".

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WHAT IS PLEXIGLAS®?

How the PLEXIGLAS® brand name came about

PLEXIGLAS®—commonplace and yet extraordinary

What kind of a plastic is PLEXIGLAS®?

PLEXIGLAS® solid sheets and blocks: the all-rounders

PLEXIGLAS® multi-skin sheets for exceptional stability

PLEXIGLAS® corrugated sheets: the roofing classic

PLEXIGLAS® tubes and rods bring design ideas to life

How is PLEXIGLAS® acrylic manufactured?

Is there a difference between acrylic and PLEXIGLAS®?

Brand of the century

Properties of PLEXIGLAS® acrylic

PLEXIGLAS® acrylic is 100% recyclable

Technical information on PLEXIGLAS® acrylic

PLEXIGLAS® and sustainability

Applications of PLEXIGLAS® acrylic

Transport

Transport

Visual communication and shopfitting

Visual communication and shopfitting

Lighting

Industrial Construction

Noise and wind protection

Architecture

Private construction

Interior and shopfitting

Further topics

Approvals

Fire Behavior

Processing PLEXIGLAS®

Be inspired​

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