News from SITRAPLAS

Optimized scratch-behaviour - SITRASUR²

The wide application range of engineering plastics coupled with the desire for creative design, constantly demand new requirements from the raw materials used.

Optimized scratch-behaviour - SITRASUR²


East Westphalian company SITRAPLAS GmbH has built its reputation as a reliable supplier of high quality plastic compounds. In addition, the company strives for new innovative products in this area.


The wide application range of engineering plastics coupled with the desire for creative design, constantly demand new requirements from the raw materials used. Currently trending are design elements with high gloss surfaces in combination with functional touch panels. The focus here is not only on purpose oriented tasks, but also on the aesthetic appearance of the parts themselves.


Plastic surfaces can become unattractive due to scratches from daily use. Scratches are caused by various reasons such as external influences or incorrect handling. Manufacturers and customers, however, want highly resistant and durable materials throughout the entire life span of a component. Improvements to the surface hardness by the application of coatings are complex and expensive.


In order to offer customers an attractive solution, the R&D-Team in Bünde developed SITRASUR². This material offers a balanced performance of all properties and excellent process ability compared to other raw materials. The University of Applied Sciences in Darmstadt compared SITRASUR² with commonly used materials in an independent study. SITRASUR² shows the ductile failure of a PC or transparent PA, which barely irritates the human eye. At the same time, the scratch resistance of SITRASUR² is unsurpassed close to PMMA. SITRASUR² offers optimum conditions for polishing to repair heavily scratched component surfaces similar to PMMA.