Covington’s #2 Koolerant is designed for cutting large pieces of hard or dense rock. This koolerant is an excellent choice for cutting any size rock that requires a high heat factor at blade contact because of the raised flashpoint. Add 9 parts of light form oil (Rockhound Oil, mineral oil, etc.) to each part of Covington’s concentrated diamond blade koolerant #2. Mix well before pouring into the saw.