Kolor Kut Water Finding Paste (MODIFIED)

A case from the American manufacturer

As an example if your gasoline has 10% ethanol in it, in a tank of 1000 gallons or 10% of product, that’s only 100 gallons of ethanol and would only be a couple of inches in the bottom of the tank. If you gauge a tank and you see that the paste has a reaction on the bottom of the gauge stick, you could assume there was phase separation or it could indicate the tank is stratified and the ethanol was not mixed properly, either way you would want to look closer at the situation. As in the images above, the paste that shows brown as it comes out of the tube, yellow from the ethanol and red from water.

The pamphlet states it will change from Brown to Yellow in alcohol solution with as little as 6% water, understand that all ethanol has water in it, ethanol will readily absorb water until it can no longer absorb it and that’s when you will see yellow and red. The paste will stay yellow at this point and not change back to brown when the ethanol evaporates out of it.