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I want to put natural rock on a interior wall can I use Liquid Nails™ to glue them to wall?

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    Sure, but it might not be your best option. If you give us some idea of the size of the natural rocks, and what the interior wall is made of that would probably help. Also, unless said rocks are cut very thin (and they probably are), there's the consideration of properly supporting their weight. Please edit your question to provide some more details to help us help you.
    – FreeMan
    Commented Dec 6, 2023 at 14:40
  • clean the rocks and surface with rubbing alcohol to remove dust and oils before gluing for a better adhesion.
    – dandavis
    Commented Dec 7, 2023 at 23:04

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I'd expect that to work just fine, considering that it won't be exposed to weather. In fact, I've done some repairs to my fireplace with construction adhesive and the artificial stones are still secure about 8 years later. Natural stone is heavier, but the bond with be as strong.

I would use "heavy duty" (solvent-based) adhesive instead of water-based "project" adhesive, though. The former is stickier and stronger.

One significant drawback is that construction adhesive doesn't have the initial grab and hold that mortar designed for the job would. You may have to secure the stones with bracing for a few hours.

There's also a remove-reapply technique you could try wherein you press a stone into place, pull it off, and reinstall it after a few minutes of curing time. This makes the adhesive stiffer. You may have to experiment a bit to get the timing right. Be careful to not let glue strings land on finished surfaces.

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