Equalizer Cutting Lubricant is used only when doing a full cut out method on your windshield repair job. Using this lubricant (ECL784) cutting lubricant improves cutting action and reduces drag on the blade. It will not damage the dash or the headliner. This lubricant keeps the sheath from overheating and prevents urethane and butyl from adhering to the blade and sheath. Mix bottle in an 8 to 1 ratio (8 parts water to 1 part lubricant) to make 64 ounces of cutting lubricant. There is 8 oz of cutting lubricant per bottle.