MARK® QTS is an FDA-sanctioned, non-toxic, solid Ca/Zn PVC heat stabilizer recommended for use in plasticized vinyl compounds. Although this stabilizer is not limited by FDA to plasticized compounds, its effectiveness is maximized when used in such compositions.

MARK® CZ 11 is primarily used in the production of plasticised PVC articles, which meet the requirements for food approval, e.g. tubes, and plasticised films, which come into contact with food.

MARK® 1939 is a liquid methyltin mercaptide for the extrusion of PVC pipe and other rigid PVC compounds such as siding substrate.