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Leak Testing >> Penetrants
Met-L-Chek : WLF-71 Water Leak Finder
Water Leak Finder

WLF-71 Water Leak Finder

- WLF-71 is a liquid dye additive which dissolves in water making the water fluoresce under UV-A ( ultraviolet) light.

- This dye additive is commonly used to help locate leaks in large storage tanks but can also be used to locate leaks in small water reservoirs such as radiators.

- In practice, it is dissolved in the water in the tank, and then suspected areas of leakage, such as riveted or welded seams, are examined on the exterior of the tank, using a UV-A light.

- Any place where the water has leaked through the tank will show up as a fluorescent wet spot.

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Model Description Part No. Price Add To Cart


WLF-71, 1 Pint




WLF-71, 1 Gallon



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