Foam Rock wall - Sealed???

[moonlightdriver]

Does a foam rock wall need to be sealed?

I used Great Stuff - Pond foam and I was wondering if you had to add a sealant to it or not?

 

[AmherstReef]

Probably, I would worry about all the chemicals in that product leaching into he tank.

 

[tropills]

Was it the black.? I'm assuming it was if its the pond foam, in that case no you don't have to do anything to it, just make sure its totally cured before filling for your water test ..

 

[moonlightdriver]

yes it was black...
so no need to seal it then correct?

 

[tropills]

Correct .. I've used it several times in my tanks with no ill effects.. the construction great stuff is a no no in any fish tank, but the pond grade is totally safe.

 

[moonlightdriver]

Thanks for the heads up... I appreciate it...
any tips on working with it?

 

[tropills]

Wear rubber gloves.. lol, the pond foam doesn't expand as much as the yellow stuff so multiple layers may be in order depending on what your trying to make.. I remember in my 700 gallon reef lagoon I did a 10 foot wall and it was very interesting to get it built up how I wanted it to look.. but all in all its pretty easy..

 

[aguz1126]

I second the use of gloves. You will hate yourself for a week if you dont

 

[gandolf8]

yes it does I just did mind not to long ago and seal it with system 105

 

[tropills]

yes it does I just did mind not to long ago and seal it with system 105

System 105 is a marine epoxy resin... its not for use in a potable water environment ..

 

[gandolf8]

Well called manufacture and they said it is ok a lot of people use it.
here is some Pic.

 

[tent boy]

I really like the look of the foam walls. Will all corals grow on the foam? Is there any down side to the foam back?

 

[gandolf8]

so far no

 

[Raptor72]

For some reason the upper half of mine disintegrates when the cuc munches on the algae. The whole upper half is open celled now and getting worn down little by little.