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Radnor 528-254 is a water-soluble red dye penetrant supplied in an aerosol can for nondestructive examination of surface‑breaking flaws on non‑porous materials. The penetrant is sprayed onto the surface and allowed to dwell so capillary action draws the liquid into defects; excess is wiped away and a dry white powder developer is applied as a suspension aerosol to produce visible indications.
Aerosol red dye penetrant for NDT on non‑porous materials; water-removable; one-year shelf life.
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