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Unread 03-27-2020, 05:09 PM   #1
Sculpture8
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Leaking Hydroban

Hoping this is the proper thread to ask this...I'm guessing I have a leak, though I thought I was very thorough when applying Hydro Ban. As you can see - I hope - this discoloration is/at under the tape/fabric - Laticrete 6" anti-fracture - about 2 hours into flood test. (maybe a mistake was using fabric, though I've used it before with Hydro Ban) I have applied two coats; it's been drying for 40 hours. Is applied over Laticrete 209 floor mud, which sat for at least 3 months; its dry.(completion timeline is based on time and/or money: gotta have a lot of one these to get things done)

My instinct tells me to apply a 3rd coat after this dries out - giving it a few days to really dry, then test again...I thank you all in advance for any suggestions?

btw: my first walk-in shower was completed quite nicely because of this forum. Amazing knowledge base!
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Unread 03-27-2020, 07:20 PM   #2
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Welcome back, Robert.

I've separated your post from the other visitor's thread to avoid confusion in both places.

I can't really tell what I'm looking at there and I've never flood tested a Hydroban shower receptor, so we'll need to wait for more knowledgeable responses.
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Unread 03-27-2020, 09:31 PM   #3
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My first question would be, under what temperature and humidity conditions did it dry for 40 hours?

How many coats did you put on? Same number all over?

What is the substrate on the walls?

Was the fabric embedded into a coat of Hydroban, or did you lay it on a dry surface and paint over it?

Did you use a wet film thickness gauge at any point?
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Unread 03-27-2020, 09:40 PM   #4
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And how long did each coat dry before the next was applied?
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Unread 03-28-2020, 05:43 PM   #5
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This is why I don't like liquid shower pans- they're too unpredictable. A lot of times the product might be put on too thick. It's counter-intuitive but too thick is problematic just like too thin.
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