[IngoB]

Hey,
this is a Noob Question, i dont have anything to do with Chemistry i search for a substance that is:

- easily available and sold to everybody
- cheap (under 20 €)
- changes Color when coming into contact with Liquid

I need this in order to localize Water Intrusion inside a car, i want to able to spray or put it on Certain Places and somehow see that it has come into contact with liquid.

Here is a picture of one of such places where i would like to put it.

https://www.google.com/search?client=ms-android-samsung-ss&sca_esv=c572f28a7634ee35&q=aggregatetr%C3%A4ger+t%C3%BCr&tbm=isch&source=lnms&prmd=ivnbz&sa=X&ved=2ahUKEwi82MOB-tiEAxUx4QIHHRs3De4Q0pQJegQIChAB&biw=412&bih=759&dpr=2.63#imgrc=UShy9tvlJO3d1M&imgdii=4vrbFvFNPnj32M


I dont know if there is even something like this out there that you can get relativly easy for cheap money. I did some searches and looked up some products but couldnt find anything.

Thanks in advance, Greetings

[Hunter2]

There are tapes in the market

https://www.indigoinstruments.com/test_strips/leak_detection/water-detection-paper-sampler.html

[IngoB]

Thanks for the answer, im gonna look if i can find something similar in my country.