Star brite® Wintersafe -46°C (-50°F) Non-Toxic Antifreeze provides excellent cold weather and corrosion protection for drinking water systems and all engines at an attractive price. Its premium additive package prevents corrosion of aluminum, copper, brass and solder, but will not harm rubber, seals or hose materials. The 3X-died pink color provides excellent blow-through visibility. The virgin Propylene Glycol (28% Blend) formula is tasteless and contains no alcohol. This product is ready-to-use; do not dilute it.