water proofing concrete

[dirk_brijs]

what would be the best paint (acrylic I guess??) available on the market to paint over a concrete aquarium for it to become 100% water proofed.
Cement used will already be waterproofed cement but want to make 100% sure with a few layers of some sort of acrylic paint I guess you use.
What brand would be fish safe?
If a LINK to a website can be given would be even more helpful.
Thanks

 

[sleepydoc]

They make some stuff called Drylok. I haven't used it and have no idea if it's reef-safe or not. Otherwise, I would guess some sort of epoxy based coating?

 

[Dundermifflin]

Drylok works great. Will not leak. Home Depot carries it. Just make sure reef safe. Safest bet is to just line it with a pond liner.

 

[Diokhan]

This is the stuff you want http://pentairaes.com/epoxy-paint.html

It's the same kind of stuff public aquariums use and is 100% reef safe. It isn't cheap, but it's the correct way to do it.

 

[swk]

Check out Laticrete hydroban or hydrobarrier. Can't remember which one is 100% waterproof

 

[mussel and hate]

High solids epoxy concrete floor paint. Pick the brand you like best, many colors available.

 

[ChimolaFish]

Ive also used dry lock and had a fine experience with it. Its white, but you can add any type of cement dye you want

 

[Jone]

Investigate epoxy coatings,,,the Commercial quality products,,,not the Home Depot resident level of products...

 

[LeakyZ]

Call u coat it. I use they're products on a lots of garage floors. Bulletproof epoxy finish. Just ask about being aquarium safe

 

[CuzzA]

2 part epoxy glaze like what's used for bar tops would work great.

 

[nvladik]

+1 for Drylok, when fully cured it's safe. Just give it enough time to dry, to be safe a week in well ventilated space. And as ChimolaFish mentioned you can make it any color you want, I used quikrete dye on mine.