Type: III

Method: A & C

Sensitivity Level: N/A

RLP-1 is a water based, dual light response visible and fluorescent (Type 3) penetrant. It is designed for through leak testing and general metal working surface flaw detection and gives visible red indications under white light and fluorescent orange indications under UV-A illumination. In the fluorescent mode of inspection smaller discontinuities may be detected than in the visible mode. It is a biodegradable penetrant being free of solvents and oils making it useful for inspection on plastics that may be attacked by more traditional penetrants.

Being a water based penetrant it may be diluted with water to fit the inspection needs. The most common dilutions are 1:1 and 3:1 water to RLP-1.

For Method C applications it is used with E-59, E-59A, R-503, and R-504.