Underwater epoxy???

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BanjoBandito

BanjoBandito

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It’s for aquascaping, but my concern is with the cured live rock having to dry/rough areas and then dry for 30 min or so like the IO epoxy. Anyone know something I can use underwater?
 
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I recently had a bad experience with curing epoxy underwater. The brand said good to cure underwater but the epoxy became flaky got into my power heads, pumps and made the tank smell horrible as the epoxy leeched into the water. I will personally never use epoxy again. Do not trust it curing in water.
 
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Top Shelf Aquatics
JGT said:
JB Water Weld, tried and true.
Click to expand...

Gtinnel said:
I've also used JB waterweld for attaching frags many times and have never had an issue with it.
It's cheap, readily available, and it works.
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+3

Been using JB water weld for many years with 0 issues.
 
www.bulkreefsupply.com

Coral Gum Instant

Why does BRS recommend this? Tunze Coral Gum is by far our favorite two-part epoxy to work with for frag mounting. Coral Gum is a fast setting epoxy that gives you just enough time to get the frags in position, but it sets much faster than other aquarium epoxies so that you don't have to sit...
www.bulkreefsupply.com www.bulkreefsupply.com

it’s a two part epoxy but it cures really fast and works well underwater
 
mdb_talon said:
There are a number of 2 part epoxy putty that i have used and had no issues.

INSTANT OCEAN HoldFast Epoxy Stick for Fish & Reef Aquariums, 4.4-oz tube - Chewy.com

Buy Instant Ocean HoldFast Epoxy Stick for Fish & Reef Aquariums, 4.4-oz tube at Chewy.com. FREE shipping and the BEST customer service!
www.chewy.com www.chewy.com

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Never fails. Use with a drop of superglue if you want a quicker bond.
 
www.dinkinsaquaticgardens.com
Just in case you didn’t know, corals are usually ok exposed for a little while, definitely more so sps than fleshy droopy LPS … I cemented live rock and covered it with a wet towel
…again, you can do this to a point upwards an hour, ymmv
 
Vicboihere said:
I recently had a bad experience with curing epoxy underwater. The brand said good to cure underwater but the epoxy became flaky got into my power heads, pumps and made the tank smell horrible as the epoxy leeched into the water. I will personally never use epoxy again. Do not trust it curing in water.
Click to expand...
Did you use a lot at one time? IE, do major aquascaping or add a bunch of corals at once? Did your skimmer go nuts?

In my experience epoxy is great for curing under water as long as it’s small amounts at a time and I use a quality superglue on both the side of water I’m attaching and the side of whatever I’m attaching to. And work very fast.
 
Doctorgori said:
Just in case you didn’t know, corals are usually ok exposed for a little while, definitely more so sps than fleshy droopy LPS … I cemented live rock and covered it with a wet towel
…again, you can do this to a point upwards an hour, ymmv
Click to expand...
Absolutely! If I’m attaching to a rock that isn’t already set in the ‘scape definitely do it out of water on surfaces as dry as possible.

The problem comes in when attaching to a rock that is already part of a “hard ‘scape” so Has to be done underwater if the tank can’t be drained below the target area.

Of my 4 tanks three of them I can easily pull a rock out to set a coral but the largest display tank was designed and cemented in place prior to adding water so impossible to just pull a rock to attach a coral on the main structure.
 
Top Shelf Aquatics
All the aquarium epoxy that you need together are based from the electrical epoxy. This stuff has been around for years. It blends white and reef safe. I wet my fingers before using it.
 

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I'm still in acquisition mode for this new tank build, and trying to think through my plan. I'd like to do something different than just "a pile of rocks" for my aquascape, but the issue is going to be trying to set it up and preserve what I have while adding cured live rock.
 
Chewy.com
mmadderom said:
Absolutely! If I’m attaching to a rock that isn’t already set in the ‘scape definitely do it out of water on surfaces as dry as possible.

The problem comes in when attaching to a rock that is already part of a “hard ‘scape” so Has to be done underwater if the tank can’t be drained below the target area.

Of my 4 tanks three of them I can easily pull a rock out to set a coral but the largest display tank was designed and cemented in place prior to adding water so impossible to just pull a rock to attach a coral on the main structure.
Click to expand...
Put superglue on the blob of epoxy then press to underwater rock. Hold for just a few seconds. Try to press epoxy into cracks and holes for a mechanical bond. Superglue is the trick.
 
BanjoBandito said:
It’s for aquascaping, but my concern is with the cured live rock having to dry/rough areas and then dry for 30 min or so like the IO epoxy. Anyone know something I can use underwater?
Click to expand...
Yes its a premixed paste that I found in my lfs. You take it out of the tube, and knead it. Although I remember an Australian guy talk about drilling, and using posts
 
www.dinkinsaquaticgardens.com
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