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Underwater putty/epoxy

DYIguy

DYIguy

NJRC Member
I'm finally liking my scape and the positions for much of my corals. I have an emerald crab ( which I'd rehome in an instant if I could catch it) and some hermits that knock things over. So what's a good epoxy/putty I can use under water to cement things up
 
kschweer

kschweer

Administrator
Staff member
Officer Emeritus
Moderator
I have always used jb water weld. Works great. I will make a ball of it and put a bit of super glue gel on the sides that will touch what I’m trying to hold together to keep it in place while it cures. Just be sure to turn the skimmer off for a bit as it will make it go crazy for a bit.
 
radiata

radiata

NJRC Member
On my most recent rock construction I used Splash Zone and had no issues with this particular epoxy. I recollect I heard about it from a reefer (on L.I.?) who used it in his reef and also used it professionally to fix holes in barges from the outside (underwater).

Here's a link to some description:

It is available on Amazon:
 
Crabby

Crabby

NJRC Member
Rjmul said:
I use the instant ocean epoxy. It's cheapest on Amazon
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As much hate that instant Ocean has gotten in the past I just got done with a scape. 12 sticks, 500ml super glue later and had ZERO issues with the epoxy. It wasn't instant grab so I super glued, putty, glue and held for a minute. Worked really well though
 
radiata

radiata

NJRC Member
Crabby said:
As much hate that instant Ocean has gotten in the past I just got done with a scape. 12 sticks, 500ml super glue later and had ZERO issues with the epoxy. It wasn't instant grab so I super glued, putty, glue and held for a minute. Worked really well though
Click to expand...

Did you use the sandwich technique? I use it for most of my frags - a blob of Crazy Glue Gel, a round mixed piece of mixed epoxy and another blob of Crazy Glue Gel.
 
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