Curtain Oil Containment Booms
Curtain Oil Containment Booms are non-absorbent oil booms designed to float; they are fitted with fixed, round, horizontally arranged floats of polyurethane hard foam, polystyrene or foam.
The basic material of the oil boom is normally fully welded PVC fabric. The lower portion of the boom consists of a flexible curtain in which a ballast weight is inserted. This is usually a galvanized steel chain acting, at the same time, as a bottom tension member and relieving the forces occurring at each point of the boom. Smaller models are often fitted with zinc-plated steel weights instead of a chain (they were previously made of lead). For some models, a steel cable is also optionally available acting as a top tension member and inserted above the floats.