Safe Sealant for Rocks - The Planted Tank Forum
 
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post #1 of 4 (permalink) Old 11-03-2017, 10:35 AM Thread Starter
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Safe Sealant for Rocks

Hi PTers,

Does anybody have first hand experience for a means to seal up rocks? Looking for an easy solution that's non-toxic to livestock. Wanting to do this to minimize leaching of calciferous compounds of elephant skin stone.

Thanks!
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post #2 of 4 (permalink) Old 11-03-2017, 03:30 PM
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A two-part epoxy resin would probably work, although it might add some 'shine' to the rock and it does yellow over time. I've also heard of folks doing a muriatic acid bath to neutralize carbonates in Seiryu stone.


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post #3 of 4 (permalink) Old 11-04-2017, 11:22 AM Thread Starter
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Quote:
Originally Posted by d33pVI View Post
A two-part epoxy resin would probably work, although it might add some 'shine' to the rock and it does yellow over time. I've also heard of folks doing a muriatic acid bath to neutralize carbonates in Seiryu stone.
I've done the acid wash, but it was to try to darken up elephant skin stone. My experience with the process is that it made the elephant stone whiter and not darker, lol. I've read numerous threads where muriatic acid baths will not prevent stones from leaching compounds into the water column.

I think I might experiment with a product called Zoopoxy. It's what those guys on the show "Tanked" supposedly use. Ever heard of it?

Cheers,
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post #4 of 4 (permalink) Old 11-04-2017, 11:41 PM
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Acid washing the stones only removed the the calcium and magnesium on the surface. It doesn't reach material below the surface. Coating the rock with a marine grade clear epoxy is your best choice.
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