A waste container has a first part having a first opening, and a second part. Fastening means are arranged to fasten and seal the second part to the first opening. Sealing surfaces together provide a radial press seal around the first opening. A snap lock of the cooperating fastening means is activated by the second part moving in a first direction in relation to the first part into the fastened position. Depth-controlling elements limit the movement of the second part in relation to the first part in the first direction beyond the point of activation. The first part and the second cap part are both made from a plastic material comprising at least 30% by volume wooden fibers. The use of such a waste container is also described.