Nordmann News & Events News Optical innovation for the future of lighting
20 October 2025

Optical innovation for the future of lighting

The TECHPOLYMERTM brand from Nordmann partner SEKISUI KASEI stands for sophisticated polymer solutions that have been specially developed for optical applications in the construction and automotive industries. Used as an additive in plastic molded parts, TECHPOLYMERTM offers a wide range of advantages that are both functional and sustainable.

Diversity in form and function

TECHPOLYMERTM consists of cross-linked acrylic or styrene polymers and is available in a wide range of particle diameters (1.5 µm to 200 µm). The particles are either poly-disperse or mono-disperse and can take on different shapes – from spherical to hollow to biconvex. The refractive index ranges from 1.49 to 1.59, and heat resistance ranges from 250°C to over 300°C for highly resistant variants. 

Car interior with blue and pink lighting

These properties enable the following functions: 

 

  • Light refraction for uniform light distribution 
  • Low permittivity for better electrical insulation 
  • Cavity structure for weight reduction 
  • Stress relaxation to minimize tension in the plastic 

For more information, please contact: 

Oliver Schwarz
Oliver Schwarz
Senior Technical Sales & Product Manager | Polymer Additives
Nordmann, Rassmann GmbH

Areas of application

TECHPOLYMERTM is used in:
 

  • LED covers
  • Plastic films and sheets for displays
  • Partition walls
  • Sheets for construction
  • Exterior and interior lighting in the automotive sector
  • Sensor components
     

Particularly noteworthy is its use in light-scattering plastics such as acrylic and polycarbonate. Here, TECHPOLYMERTM serves as a diffusion agent that ensures uniform light distribution.

Market response and customer feedback

Customers particularly appreciate the stability of the particle size distribution and the possibility of customization.

 

In addition, the combination of technical performance and sustainability strikes a chord with the spirit of the times – especially in markets with a growing demand for environmentally friendly solutions.

Distributed in:

Germany

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