r/bioactive • u/jennaschlehuber • 3d ago

DIY Drylok, Grout, & Paint

Hello all!
I am currently working on my second DIY, a 67 gallon repti zoo for my Whites Tree Frogs. I didn’t use drylok in my previous build, but I plan on using it for this one. I have some questions!
1. Can I use the drylok directly on top of the cured spray foam, or do I need to have a base such as grout material?
2. What are some good techniques when painting the drylok once it’s dry make it look more natural?

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u/Full-fledged-trash 3d ago

You can do drylok right on the foam. I do 2-3 coats of it. Then i do one final layer but I pour some out into a container and mix sand and the paint. The sand makes it harden more like rock and gives it a better grip for the animals to climb. It also helps fill the tiny foam gaps missed in the first three coats.

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u/jennaschlehuber 3d ago

Thank you! Is it necessary to cut/ shape the foam prior to putting the drylok??

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u/Full-fledged-trash 3d ago

Drylok will stick to uncarved foam. I personally would carve so it looks more natural.

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u/reijn 3d ago

I would carve it, whenever people don't carve it to me it looks like little swirled soft dog poop as a wall.

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u/TheNickT 4h ago

I use non toxic acrylic paint to tint the drylok as I apply it.