MIL-I-17563A, MILITARY SPECIFICATION: IMPREGNANTING COMPOUND, COPPER ALLOY CASTING (12 MAR 1957)

MIL-I-17563A, MILITARY SPECIFICATION: IMPREGNANTING COMPOUND, COPPER ALLOY CASTING (12 MAR 1957)., This specification covers the requirements for impregnants suitable for use in sealing sealing porosity (including microporosity) in copper alloy castings that "weep" or "sweat" under hydrostatic or aerostatic pressure.