*2.1. Composite Materials*

The subject of the study is two types of composite construction profiles made of the following materials:


The profiles are designed for outdoor flooring, produced from the mixtures described in Table 1.


**Table 1.** Composition of composites used in the production of profiles.

<sup>1</sup> The proportion of mixture components is given in parts per 100 phr (parts per hundred rubber). <sup>2</sup> Detailed data are not available due to company secrecy.

The profiles were manufactured by extrusion under industrial conditions. The usable surfaces were mechanically treated by brushing, which is standard for construction profiles.
