412 Slick Lube is the most advanced coolant on the market today. It is a 100% synthetic coolant which is a unique blend of wetting agents, lubricants and rust inhibitors. It is excellent for use with drilling and cutting diamond instruments. Slick lube contains no nitrosamines, phenols, nitrates, sulfur, chlorine, phosphates or oil. It controls dermatitis with the addition of skin conditioners. Mix 1 part Slick Lube with 10 parts water for the best in water soluble lubricants.