All-purpose sealing compound that is lead-free, non-hardening and an opaque gray paste. It adheres readily to iron, stainless steel, aluminum, Monel, plastics and synthetic rubber compounds. Brush on to seal pipe joints, plugs, screwed fittings and gasketed connections in steam systems, refineries, gas service, refrigeration systems and chemical plants. Used by chemical plants, gas utilities, refineries, airlines, hydraulics tank trucks.All-purpose sealing compoundLead-free, non-hardening, opaque gray pasteAdheres readily to iron, stainless steel, aluminum, monel, plastics and synthetic rubber compoundsBrush on to seal pipe joints, plugs, screwed fittings and gasketed connections in steam systems, refineries, gas service, refrigeration systems and chemical plantsUsed by chemical plants, gas utilities, refineries, airlines, hydraulics tank trucksUse on all metals and most plastics