Met-L-Chek Fluorescent Penetrant - Water Washable

Met-L-Chek Fluorescent Penetrant - Water Washable

Water Washable Fluorescent Penetrants for Detection of Fine Cracks, Porosity and More

Water Washable, Solvent Removeable

Met-L-Chek® FP Series Penetrants are water washable and solvent removeable penetrants used for the detection of fine cracks, porosity, and through leaks on metals, composites, synthetic materials, and some plastics. The materials used are low in sulfur and halogens, VOC free, and safe for use on all metal surfaces. Met-L-Chek® FP Series Penetrants are bright yellow, smooth washing and non-gel forming, allowing them to wash cleanly from rough surface.

For Method C applications, use with E-59, E-59A, R-503, and R-504. All FP series penetrants are SAE QPL AMS 2644 certified, meeting the requirements of ASTM E1417, ASTM E165, ASTM E1209, AMS 2647, NAVSEA 250-1500-1, ISO/FDIS 3452, and ASME Boiler and Pressure Vessel Code Sec. V Article 25.

FLP-1 Water Based

Type: I / Method: A & C / Sensitivity Level: N/A

Met-L-Chek® FLP-1 is a special water based fluorescent penetrant concentrate designed for through leak testing and general metal working surface flaw detection. It is free of petroleum solvents and oils, making it safe for use on many plastics that may be attacked by more traditional inspection penetrants.

Being a water-based penetrant, FLP-1 may be diluted with water to fit the inspection needs. The most common dilutions are 1:1 and 3:1, water to Met-L-Chek® FLP-1. For through leak testing or to enhance hydrostatic leak detection, dilutions of 1000:1 have been used successfully. The use of developer D-70 will enhance flaw detection.

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

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FP-921 Level 1

Type: I / Method: A & C / Sensitivity Level: 1

Met-L-Chek® FP-921 is used for the detection of fine cracks, porosity, and through leaks on metals, composites, synthetic materials, and some plastics. Met-L-Chek® FP-921 is approved for low sensitivity aerospace applications. The materials used are low in sulfur and halogens, VOC free, and safe for use on all metal surfaces. It is bright yellow, smooth washing and non-gel forming, allowing a clean wash cleanly from rough surface. It is applied by immersion, spray, electrostatic spray, brush on or wipe on.

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

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FP-922 Level 2

Type: I / Method: A & C / Sensitivity Level: 2

Met-L-Chek® FP-922 is used for the detection of fine cracks, porosity, and through leaks on metals, composites, synthetic materials, and some plastics. Met-L-Chek® FP-922 is approved for medium sensitivity aerospace applications The materials used are low in sulfur and halogens, VOC free, and safe for use on all metal surfaces. It is bright yellow, smooth washing and non-gel forming, allowing a clean wash cleanly from rough surface. It is applied by immersion, spray on, electrostatic spray, wipe on or brush on.

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

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FP-923 Level 3

Type: I / Method: A & C / Sensitivity Level: 3

Met-L-Chek® FP-923 is used for the detection of fine cracks, porosity, and through leaks on metals, composites, synthetic materials, and some plastics. Met-L-Chek® FP-923 is approved for high sensitivity aerospace applications. The materials used are low in sulfur and halogens, VOC free, and safe for use on all metal surfaces. It is bright yellow, smooth washing and non-gel forming, allowing a clean wash cleanly from rough surface. It is applied by immersion, spray, electrostatic spray, wipe on or brush on.

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

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Choosing Fluorescent (Type 1) Water Washable (Method A) Penetrants

Water washable penetrants are the most widely used for general metal working and even low stress component aerospace applications. Water washable penetrants are composed of water washable ingredients. The penetrant covered part is simply washed after the prescribed penetration dwell time. Being water washable, excessive wash time or pressure must be avoided with Method "A" penetrants, to avoid washing the penetrant out of shallow open discontinuities.

The FBP-911, FBP-912, FBP-913 and FBP-914 series covers sensitivity levels 1-4 and was designed to be the most environmentally friendly possible. This series does not contain fats, oils or greases (FOGs) and is free of any volatile organic compounds (VOCs). The constituents are considered biodegradable. This series is smooth washing, non-gel forming and will wash cleanly from rough surfaces.

The FP-921, FP-922 and FP-923 series cover sensitivity levels 1-3. These materials are bright yellow green fluorescent penetrants that are smooth washing, with controlled removal without gelling. They have low viscosities, which aids in spraying and reduced drag out in immersion applications. The materials use biodegradable surfactants. They are approved by GE, Pratt & Whitney and Rolls Royce for non-rotating turbine engine component inspection. Widely used for investment casting inspection and general industrial applications.

Cross Reference Penetrant Chart - click on the links for more information

Met-L-Chek Sherwin Magnaflux
FP-921 HM-2D N/A
FP-922 HM-3A ZL-60D
FP-923 HM-430 ZL-67B

Contact us if Manufacturer Safety Data Sheets are required.

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Description Part # Saved Price Select Option Add to
Met-L-Chek Water Washable Fluorescent Penetrant, Water-Based, FLP-1 (specify packaging)
Model #
LT-MC-M-FLP-1-Master $89.00
Met-L-Chek Water Washable Fluorescent Penetrant, Level 1 PMC 4350, FP-921 (select packaging)
Model #
PT-MC-M-FP-921-Master $141.00
Met-L-Chek Water Washable Fluorescent Penetrant, Level 2 PMC 4351, FP-922 (select packaging)
Model #
PT-MC-M-FP-922-Master $141.00
Met-L-Chek Water Washable Fluorescent Penetrant, Level 3, FP-923 (select packaging)
Model #
PT-MC-M-FP-923-Master $165.00