Cobalt Chloride Detection Paper
Cobalt chloride sheets find water leaks fast-under roof shingles & floor tiles or inside car doors only $2.95 or less when you buy in quantity.
Use individual strips if you need to find water in cracks or hard to reach spaces. Strips & sheets change color slowly at relative humidity of 55%; immediately with liquid water.
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Current Reviews: 2
Note: The reaction is reversible if exposed to water vapor in less than 100% relative humidity. If the sheets are heated or the surrounding air goes dry, these will revert back to their blue color. If splashed, they will change permanently and indicated distinctive white spots.
The moisture detection paper sheets shown in the image are 8x10" (200x250mm). They react by turning a light pink color immediately when exposed to liquid water or slowly when exposed to greater than 55% humidity.
This cobalt water detection paper sheet is available in large format 24x20" (600x500mm) by special order. Mininum special order is a pack of 100 sheets.
You can find more information by click on Cobalt Chloride: Colorful Moisture Detector
5 Stars 2019-06-12
Been stymied by a small leak in a drain pipe in my home for some time - finally ordered these water detection sheets and voila - was able to pinpoint the location of the leak and have the plumber repair quickly. These sheets work great - I think every plumber in America should have them available to help locate pesky leaks - thanks for the great product and helping me solve my annoying little problem.
4.5 Stars 2019-03-12
Good. Received in speedy fashion and well protected from the elements so the paper would not react before getting to NZ.