Acrylic, better than glass

From the early days onwards, we have been manufacturing synthetic acrylic glass; nowadays at our 100% subsidiary Delta Glass in Tholen, the Netherlands. For that we have developed internally our own unique casting process. The casting process is preferred over the extrusion method as it enables better production control and therefore better specifications can be guaranteed. It ensures the best possible visual characteristics, break-resistance and extraordinary stability. The excellent transparency has made acrylic glass very successful and it is genuine alternative to normal glass.

A flexible, totally smooth acrylic sheet with a high level of translucence is produced, known as Roxite®. Roxite® is a strong and lightweight material. It has a density of 1.20 g/cm3, which is less than half of normal glass. It also has good impact strength, higher than both glass and polystyrene. Roxite® ignites at 460 °C (860 °F) and burns, forming carbon dioxide, water, carbon monoxide and low-molecular-weight compounds.

Roxite® transmits up to 92% of visible light (3 mm thickness), and gives a reflection of about 4% from each of its surfaces on account of its refractive index (1.4914 at 587.6 nm). It filters ultraviolet (UV) light and passes infrared light of up to 2800 nm and blocks IR of longer wavelengths up to 25000 nm.

Roxite® swells and dissolves in many organic solvents. Nevertheless, its environmental stability is superior to most other plastics such as polystyrene and polyethylene.

Special treatments

Special treatments can change specifications for example from UV transmitting to UV resistant. Right now a new and improved composition of UV blockers has been generated to provide even more increased colour stability over many years, bringing differences in aged and new material to a minimum.

Roxite® Classic Roxite® with regular quality UV absorbers
Roxite® Premium    Roxite® with extra UV absorbers, used in Polyplastic windows
Roxite IQ High impact version of Roxite®, the solution when it comes to safety and protection

Coloured PMMA varieties allow specific IR wavelengths to pass while blocking visible light.

For use of Roxite® in your acrylic based products please contact us via

Roxite® Acrylic characteristics:

  • Shockproof
  • Lightweight
  • Thermo formable
  • Excellent transparency
  • Stronger than glass (due to molecule structure)
  • Chemical resistant
  • UV transmitting
  • Easy to work with (cut and drill)


The first acrylic acid was created in 1843. Methacrylic acid, derived from acrylic acid, was formulated in 1865. The reaction between methacrylic acid and methanol results in the ester methyl methacrylate(MMA). As stated earlier, we cast the raw material MMA in the form of sheets. The starting material is a liquid crude oil product called monomer. This liquid is hardened in a glass mould in a high-power furnace, a process which eliminates all the internal tensions within the raw material.