Mayhems Pastel Coolant Concentrate - 250mL - Mint Green Can be used with all of Mayhems Dyes to make your own colours Premixed in a variety of colours Blended with Non-Toxic Corrosion & Scale Inhibitors for protection of Copper, Brass, Steel, Nickel and Aluminum. Very low oral toxicity, less than propylene glycol. Boiling Point : up to 95 C (pressure dependent).