Fluorescent Penetrant Liquids

  • ZL-150

    ZL-150

    Level 2 Water Washable Fluorescent Penetrant

    Specially designed to reduce the cost of quality inspections, ZL-150 fluorescent water washable penetrant is ideal for finding indications in rough cast parts in high-volume dip applications. Foundries and casting houses will find this penetrant particularly useful in reducing cost while maintaining strong Level 2 fluorescent penetrant performance in sensitivity and removability.

  • ZL-15B

    ZL-15B

    Level 1/2 Water Washable Fluorescent Penetrant

    ZL-15B water washable penetrant is a low-sensitivity penetrant that features excellent washability. It is used to find open surface flaws such as cracks and porosity in seams, laps, cold shuts, and laminations on castings, forgings, extrusions, and parts with rough surfaces.

  • ZL-19

    ZL-19

    Level 1 Water Washable Fluorescent Penetrant

    A water-removeable Level 1 penetrant, ZL-19 is designed for use on rough or unmachined surfaces such as castings and forgings to find larger discontinuities in non-safety critical components. It is ideal for inspecting automotive and general industrial components such as engine cylinder blocks, power train components, rocker arms, pistons, steering knuckles, etc.

  • ZL-56

    ZL-56

    Level 4 Water Washable Fluorescent Penetrant

    An ultra-high sensitivity penetrant (Level 4), ZL-56 fluorescent water-washable penetrant is safe for use on alloys in engineering and aerospace use, including aluminum, steel, nickel and titanium. ZL-56 is designed for non-porous and highly machined components. Developers recommended are ZP-4D powder, ZP-9F non-aqueous, SKD-S2 non-aqueous and ZP-5B water suspendible.

  • ZL-60D

    ZL-60D

    Level 2 Water Washable Fluorescent Penetrant

    Developed for testing rough machined surfaces, ZL-60D 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 surface – for clearer indications and better inspection reliability.