Fume Suppressants and Defoamers
Fume Suppressants diminish or eliminate the need for expensive anodizing line ventilation systems. Stone Chemical Company fume suppressants are highly concentrated and can be used in economically small quantities to yield acceptable results. The Stone Chemical Company defoamer prevents undesirable foaming without interfering with metal finishing processing.

Fume Suppressants and Defoamers
AN290L Fume Suppressant | AN290L is an excellent, cost effective fume suppressant used for alkaline environments such as etches bath fuming. AN290L is designed to be used in very small quantities and is low foaming. |
AN295L Fume Suppressant | AN295L is a highly concentrated, cost effective fume suppressant used for alkaline environments such as etch bath fuming (AN295L is sometimes used in the anodizing bath). AN295L is designed to be used in very small quantities and is low foaming. |
AN565L Defoamer | AN565L is a highly concentrated, cost defoamer used for alkaline environments such as etch bath and anodizing bath foaming. AN565L is designed to be used in very small quantities. |
AN900L Fume Suppressant | AN900L is an excellent, cost effective fume suppressant used for both Type II and Type III (hardcoat) acidic anodizing baths. AN900L is designed to be used in very small quantities and is low foaming. |