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Non-Destructive Testing » HI-TEMP Penetrant System


KO-17 Penetrant

DescriptionPenetrant System CategoryCompetitor Equivalent
KO-17 along with KO-19 Cleaner/Remover and D-350 Developer comprise Sherwin Incorporated's HI-Temp Penetrant System, which works at temperatures above which ordinary penetrants are ineffective.Water-Washable (Methods A&C) 

KO-19 Remover

DescriptionPenetrant System CategoryCompetitor Equivalent
KO-19 along with KO-17 Penetrant and D-350 Developer comprise Sherwin Inc's Hi-Temp Penetrant System, which works at temperatures above which ordinary penetrants are ineffective. It is used in the penetrant process to remove excess KO-17 Hi-Temp Penetrant from part surfaces or for cleaning an insoection surface prior to applying KO-17 Penetrant. KO-19 meets low halogen and low sulfur requirements. It is a nonchlorinated material and non-miscible in water. It is relatively volatile and evaporates completely and rapidly.Solvent Removers (Method C) 

D-350 Developer

DescriptionPenetrant System CategoryCompetitor Equivalent
D-350 along with KO-17 Penetrant and KO-19 Remover comprise Sherwin Inc's Hi-Temp Penetrant System, which works at temperatures above which ordinary penetrants are ineffective. D-350 developer consists of refined white particles suspended in isopropyl alcohol to give enhanced sensitivity for locating tight, incipient flaws. By solvent and capillary action, it pulls flaw-entrapped penetrant to part surfaces for display against a white background. It is not recommended for use at temperatures lower than 175F. At lower temperatures, D-350 dries more slowly. Also, the particles are more adhering at lower temperatures and require greater effort to remove upon completion of the inspection process. Removing D-350 requires wiping with water-dampened toweling.Non-Aqueous Form D & E, Visible & Fluorescent