Free newsletter:
NDT promos & resources.


There are 0 items currently in your shopping cart
1 - 1 of 1
Leak Testing >> Penetrants
Met-L-Chek : RLP-1 Vis. & Fluo. Leaker Penetrant

RLP-1 Visible & Fluorescent Water Based Leaker Penetrant

Met-L-Chek RLP-1 is a water based, dual light response, red dye penetrant, designed for through leak testing and general metal working crack detection.

It is a biodegradable penetrant being free of solvents, and oils.

It is low in Sulfur, Chlorine, and other Halogens.

It is used on plastics that may be attacked by more traditional inspection penetrants.

Besides giving a visible red indication, under UV-A illumination RLP-1 produces an orange fluorescence which improves small flaw detection capability. Being a water based penetrant it may be diluted with water to fit the inspection needs.

The most common dilutions are 1:1 and 3:1 water to RLP-1, but each user can tailor the color intensity to their specific needs.

The use of a developer such as D-70 will enhance flaw detection.

Please Note: Check an item and click on the text "Add To Cart" in order to select an item.  Simply checking a box will NOT add the item to your shopping cart.
Model Description Part No. Price Add To Cart


RLP-1, 1 Gallon




RLP-1, 5 Gallon




RLP-1, 55 Gallon


Please email us or
call 1-800-635-9108 or 913-432-7080
for current pricing.

1 - 1 of 1