Visible liquid dye penetrant testing is a 3 step process for detecting faults in welds, casting and alloys. Cleaners and Developers are available in a flammable Nuclear Grade without chlorinated solvents and a Non-Flammable Grade. PHF Penetrant is flammable.
Nuclear Grade Developer
DF315-16: Aerosol 1 Dozen, DF315-4×1: 4 x 1 Gallon Case, DF315-5: 5 Gallon Pail, DF315-55: 55 Gallon Drum