Polycarbonate is ideally suited as construction materials for lamp components
Workplace lamps have to illuminate the place where they are in use perfectly, while at the same time being robust and working reliably despite a variety of environmental factors. Covestro, formerly Bayer MaterialScience, offers various grades of its Makrolon® polycarbonate that are ideally suited as construction materials for lamp components and easily satisfy these different requirements. This is demonstrated in the Magnum Future mobile spotlight from Polish lamp manufacturer Lena Lighting.
This lightweight lamp is fitted with energy-efficient LEDs as a light source. A diffuser made from Makrolon® 2405 ensures optimal dispersion of the LED light. Dyed white, the translucent polycarbonate is tailor-made for use in light and lamp technology applications. Its high level of translucency and outstanding light-diffusing properties ensure that the diffuser disperses and homogenizes the spots of light from the LEDs with little loss. Thanks to the high impact resistance of the material, the diffuser is well protected against impacts and vibrations such as those that can occur during the assembly or transport of the lamps.
Another advantage of the thermoplastic material is the low level of shrinkage and very limited tendency to warpage. Combined with low water absorption, these two characteristics provide a high level of dimensional stability in the diffuser and contribute to the tightness of the whole lamp construction. LED lamps with Makrolon® 2405 thus fulfill the IP54 (International Protection) class of protection; their inner workings are safely protected from splashing and dust.
Thanks to its good flow properties, the product is particularly well suited for components with large flow path / wall thickness ratios. The low melt viscosity enables the material to fill the mold quickly and completely, and the finished parts are easily demoulded.
With 2014 sales of EUR 11.7 billion, Covestro is among the world’s largest polymer companies. Business activities are focused on the manufacture of high-tech polymer materials and the development of innovative solutions for products used in many areas of daily life. The main segments served are the automotive, electrical and electronics, construction and sports and leisure industries. The Covestro group has 30 production sites around the globe and employed approximately 14200 people at the end of 2014. Covestro, formerly Bayer MaterialScience, is a Bayer Group company.