Glass or acrylic: the application determines the choice
Various materials can be used for transparent components. The suitability of a material depends, among other factors, on the optical requirements, loads, installation conditions and applicable safety requirements. PLEXIGLAS® can be used as an alternative to glass in suitable applications. However, replacement requires an assessment of the necessary material properties and design.
What properties does PLEXIGLAS® offer?
PLEXIGLAS® is a branded acrylic material made from polymethyl methacrylate (PMMA). The range includes different grades and versions for various applications. Transparency, UV and weather resistance, and mechanical properties must be assessed using the specific product information. These properties do not establish general superiority over glass.
Important properties when selecting a material
- Weight and dimensioning
The weight of the component, dimensioned for its intended use, is relevant to transport, installation and design. It depends on the material, surface area and thickness. The required thickness must be determined according to the application and loads. - Mechanical load capacity and fracture behaviour
The characteristic values of the specific grade, together with the component's dimensions, fastening and loading, are decisive. PLEXIGLAS® can also break when overloaded. General resistance to breakage or splintering is not guaranteed. - UV and weather resistance
The manufacturer describes high UV and weather resistance for suitable PLEXIGLAS® grades. Whether a grade is suitable for the intended outdoor use must be checked against its product information. Any warranties apply exclusively under the respective warranty terms. - Light transmission
Colourless, transparent PLEXIGLAS® versions offer high light transmission. The specific value depends, among other factors, on the grade, thickness and surface finish. The specifications and measurement conditions in the corresponding product data sheet are decisive.
Who might consider using PLEXIGLAS®?
- DIY enthusiasts who want to produce transparent components following the appropriate processing instructions
- Architects & designers who select materials according to defined optical and technical requirements
- Shopfitters & tradespeople who want to use acrylic for suitable display and interior fit-out components
- Outdoor project designers who need a grade suitable for the specific outdoor application
What to check before use
The following points are particularly important when selecting the appropriate version:
- specific grade, surface finish and material thickness
- optical requirements and intended conditions of use
- mechanical loads, fastening and installation conditions
- temperature, thermal expansion and contact with cleaning agents or other chemicals
- required safety documentation and, where applicable, building regulations
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