PET-MAT is a scientific team focused on supporting the recycling process of plastics and its propagation. Two projects are currently being developed by PET-MAT.

The PET(b)rick project is a rather scientific study of the usability of bottles and their ability to carry loads, where the carrying medium is air. The goal is to design a special shape of the bottle so that it would form a brick.

The PETree project is focused on public propagation of sorting the waste by building a hollow Christmas tree with an exhibition space inside.