Chlorophenol red detection paper dramaticallly indicates the presence of water with a bright red color; only $2.95 for one; quantity discounts. Not recommended for water that is below pH 5.5
Chlorophenol red sheets available in large format 24x20" (600x500mm). Mininum is a pack of 100 sheets. Other custom sizes also available, MOQ applies.
Cobalt Chloride Leak Detection Paper reacts at relative humidities above 55% so can detect water vapor as well as liquid water. Universal pH Water Leak Detection Paper also provides a permanent record and can indicate pH at the same time.
See our blog Find Water Leaks Fast.
Click on the Details tab below for more information on this type of moisture test sheet & a view of use with spot plate leak detection.
The water indicator paper sheets shown in the image are 8x10" (200x250mm). The native color of the sheets is yellow & the wetted sections turn red when exposed to liquid water. They are insensitive even to high humidity levels unlike the cobalt chloride papers.
Note: Chlorophenol red does NOT change color if the water is below pH 5.5. If you require a permanent record of water leakage at pH levels below this, we recommend the universal pH water indicator paper.
Test Paper Documentation
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I bought these for the purpose of locating hard to observe, intermittent water leaks. By strategically placing small sections of the paper in various places, I was able to monitor on a schedule rather than guessing when the leaks might happen. Now the leaks are fixed and I can monitor periodically for signs of new problems.
Great news & thanks for letting us know. For those who want to know a little bit more, check out: Find Water Leaks Fast: Cars, Boats, Roofs, Plumbing
Fast shipping and working well to identify water leaks.
Glad it worked. This may help others better understand the different leak detection sheets, check out: Find Water Leaks Fast: Cars, Boats, Roofs, Plumbing.
This water detection paper worked well in identifying moisture intrusion during testing and was easily observable due to its high color contrast.
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