Emulsifiers are an important part of a water based metal-working fluid. Factors that affect the type of emulsification system used include the type of emulsion the formulator wants to create and the water quality in which the product will be used.
Afton Chemical has several emulsifier chemistries that can be used to achieve stable emulsions in various water qualities. They are often used in combination as either primary or secondary emulsifiers, depending on the final properties of the emulsion. The emulsifiers can also have other benefits, including low foam, corrosion protection for ferrous metals and good lubrication.
Afton's new primary polymeric emulsifiers can help enhance the extended life of many emulsions. They are very effective at low concentrations, have very low foam characteristics, are tolerant to waters of low or high hardness, and are less susceptible to polymeric attack.
Afton has several different classes of emulsifiers, including:
Amides: secondary emulsifiers that are very effective at low concentrations for improving the corrosion and lubricity performance of emulsions
Natural sulfonates: primary emulsifiers that offer the benefit of improved corrosion protection and low foam characteristics
Succinate: primary emulsifiers that have the advantage of not containing sulfur as a component
These chemistries are often used in combination to achieve emulsion stability. Afton will work with you to select the most suitable emulsifier for your situation.