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A medium sensitivity penetrant (Level 2), ZL-2C fluorescent post-emulsifiable penetrant is designed to be removed from the part surface by emulsifiers or solvent.
With a UV-A light source, indications will appear as a bright green-yellow fluorescence.
ZL-2C has a high flash point, and is designed to be used in open dip tanks.
Essential for critical component applications, ultra-high sensitivity ZL-37 post-emulsifiable penetrant is designed for detecting fine, tight discontinuities in safety-critical components, such as titanium turbine components, and in high-stress parts, such as investment castings.
This Type 1 penetrant is non-water-soluble so there is minimal risk of washing ZL-37 penetrant from a fine or shallow defect which makes this penetrant inspection the most reliable, dependable form of PT testing.
ZL-37 has a high flash point and provides long tank life when used in open dip tanks, but this penetrant can also be applied in a variety of other ways, including electrostatic spray.
ZL-37 can be removed with ZE-4B Method B lipophilic emulsifier or ZR-10C Method D hydrophilic emulsifier.
Developed for testing rough machined surfaces, ZL-60C fluorescent water-removeable penetrant is ideal for finding indications in castings, forgings, extrusions and rough surfaces.
This medium-sensitivity penetrant washes off parts quickly and easily, leaving less fluorescent background – even on rough surfaces – for clearer indications and better inspection reliability. Broad specification compliance further increase this penetrants flexibility.
ZL-60C has excellent alloy compatibility and is safe to use on most engineering and aerospace materials, including aluminum, steel, nickel and titanium.
