Sherwin KO-17 penetrant, KO-19 Cleaner and D-350 Developer are specially formulated liquid penetrant solutions for high temperature applications.
KO-17 hi-temp penetrant is a visible dye penetrant used to find flaws on surfaces at elevated temperatures, up to 3500F (176.70C). KO-17 saves time for weldmet inspection allowing the inspection to take place at pre-heated temperatures. Complies with low sulfur and low halogen requirements. Because KO-17 works at high temperatures, the heat drives contaminants from flaws and heat-expanded flaws trap more penetrant, giving stronger indications.
KO-19 hi-temp remover used to remove excess penetrant from the surface of a part at elevated temperatures; up to 3500F (176.70C). KO-19 is the remover step of a three part system used to remove excess penetrant from part surfaces (KO-17 hi-temp penetrant and D-350 hi-temp developer) are the other materials of the hi-temp system. KO-19 complies with low sulfur and low halogen requirements.
D-350 is a hi-temp developer used to enhance penetrant indications on parts at elevated temperatures, temperatures up to 3500F (176.70C). D-350 is the developer step in a three part high temperature system (KO-17 hi-temp penetrant and a KO-19 hitemp remover are the other materials of the hi-temp system). D-350 complies with low sulfur and low halogen requirements.