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Home > Blog > PMMA or Plexiglass



PMMA material

commonly known as Plexiglass

PMMA, commonly known as Plexiglass, has many advantages.
This material offers transparency akin to glass, as well as incomparable top-of-the-range finishes.

And when it comes to reliability, our PMMA cases are long-lasting and can be reused.

When it comes to personalisation, we offer digital or hot stamping of
your logo or message on your cases – just ask our team!

PMMA can be used for a wide range of applications, but is particularly well suited to the luxury goods, POS and cosmetics markets.

The design of PMMA parts and the transformation of this material by injection are among our company’s historic specialities. Our expertise in the optical sector has been put to good use in luxury packaging.

Discover our PMMA cases
Formule PMMA

To find out more

This polymer has remarkable transparency (92% average transmission) in the visible range from 380 to 780 nm.

PMMA is an amorphous or non-crystallised polymer with a glass transition temperature of between 110 and 135°C. As a result, at room temperature it is hard, rigid and brittle, with little elongation. PMMA is hygroscopic and, under extreme conditions, absorbed water will act as a plasticiser and alter the material’s properties. Its creep is fairly limited. When the critical stress is exceeded, PMMA is subject to cracking (fine cracks). This phenomenon is accentuated in the presence of corrosive agents (alcohol, petrol, etc.).

Impact resistance is relatively low and the polymer is brittle. This resistance can be improved by adding an anti-shock agent. PMMA resists scratches well under normal conditions of use. However, when cleaned frequently or used in a dusty environment, it can be scratched. PMMA is easily polished.

PMMA is tasteless and odourless and can, in some cases, be recognised as compatible for use in the food industry. Up to 60°C, PMMA is fairly resistant to dilute organic acids and minerals, as well as dilute alkaline solutions, but it is attacked by certain products.

These are: Acetone, Chloroform, Naphtha, Alcohol, Cyclohexane, Nitrobenzene, Ethanol, Hydrogen Peroxide, Petroleum, Ammonia (liquid), Turpentine, Phenol, Benzene, Hydrocarbons, Trichloroethylene, Fuel, Carbon Tetrachloride, Liquid Chlorine and Methanol (30%).

Electrical properties can be greatly affected by moisture absorption. Its resistance to electric arcs is excellent. This material is electrostatic, which can affect its appearance (dust attraction). This disadvantage can be corrected by using antistatic products.

PMMA is combustible and burns without producing excessive smoke (UL 94 HB). Its moulding shrinkage is low (0.4 to 0.7%), as with other non-crystallised polymers. As its coefficient of linear expansion is very different from that of metals and its elasticity is low, it is not advisable to use metal inserts in an injected PMMA part.
The maximum operating temperature is low (<85°C). Printing and marking properties: the material is suitable for both vacuum metallization and screen printing.

– Injection: The high viscosity of PMMA in its liquid state requires high injection pressures (up to 1,500 bar).
– Machining: Machining is straightforward if impact and overheating are avoided.
– Bonding: As solvent-based adhesives release stresses, the parts must be cured in an oven (2 to 3 hours at 80°C).
It is easily bonded either with pure solvents (chloroform) or with PMMA dissolved in a solvent.
– Welding: PMMA can be welded as is, but the appearance and strength will not be as good as with adhesive bonding. Welding is limited to high frequencies, hot gas and ultrasound. PMMA has good dimensional stability and limited shrinkage due to its amorphous structure.

Download the complete subject sheet

Our material certificates

Matières certificat RoHS

RoHS
Declaration of conformity

CMRT rapport de conflit sur les minéraux

CMRT Conflict Mineral Reporting Template

Other certificates for PMMA

Physico-chemical characteristics and parameters of material transformation.

Information on safety precautions to be taken during handling and in the event of an incident.

List of substances subject to authorisation.

Document issued by an American laboratory (UL) guaranteeing the composition, performance and manufacturing method of the material.

Californian law designed to inform end customers of the presence and related risk of a substance contained in a list.

Assessment of the time taken for a leak to appear if a substance on the RoHS list is contained in the part.

Do you have a question about PMMA?

Our team is at your disposal for any regulatory questions you may have
on PMMA or the other materials we use.
If you have any questions or require any of the certificates mentioned above,
please contact us using the questionnaire below.

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    E-plasticase

    For almost 50 years, GAGGIONE has been creating and manufacturing plastic cases. It began with a custom-made case for a company who wanted to sell a kit of several products in a solid carrying case.     Our dedicated brand name to packaging, PLASTICASE, created in 1976, now offers a large range of more than 30 plastic cases and boxes in different designs, colors and finishing. To make the most suitable case to your image, our specialists will offer you the best solution to present, protect and carry your products efficiently. Gaggione is well-known all over the world for its quality, efficiency, and reactivity! Trust the E-Plasticase team who will make with you the most successful packaging you ever had!

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    • 3 rue de la Rolland
      01460 MONTREAL LA CLUSE
      FRANCE
    • + 33 (0)4 74 76 12 66
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