An oil or ester base liquid used with a developer to detect surface flaws in metals, ceramics, glass, and some plastics. Penetrants will reveal only defects which are open to the surface and which are of sufficient magnitude to permit entrance of the penetrant by capillary action. The penetrant remains in the opening until it is withdrawn by the greater capillary action of the developer.
NSN 2925-01-399-2765
NSN 5855-00-791-5000
NSN 6620-01-157-6954
NSN 5999-01-064-0951
NSN 5910-01-273-0709
NSN 5975-01-222-0594
NSN 6610-00-419-3154
NSN 5960-01-491-9916
NSN 6145-01-650-1527
NSN 2925-01-507-7877
NSN 6145-01-419-6050
NSN 2925-00-048-7172