Technical Data Sheet Safety Data Sheet Available Packs 1L, 4L, 5L, 20L, 25L, 208L, Bulk LEAD COOLENT 100% Concentrate is a concentrate automotive radiator fluid composed of demineralized water, ethylene glycol and an advanced blend of balanced corrosion inhibitors. It’s designed to protect the cooling systems of water-cooled petrol engines. The majority of passenger cars’