Silicone strong enough?

[clancaster23]

I am making my own overflow box inside my 180 and I'm making it out of 1/4" glass. I have the glass all cut and ready to put together but I realized when I picked it up that it isn't exactly light. It's going to be 55" long and will stick out from the back of the tank 5" and will have end on both sides which will be holding it against the back tank wall. Will the silicone be strong enough to hold this up in the tank once filled?

 

[kbuser92]

Its going inside the tank? I don't see why it would be a problem, after all, that's what the seams in your tank are. Remember, there will be upwards pressure to help it stay up and lateral pressure pushing it against the back wall in addition to the presures inside of the box.

Out of curiosity, why glass instead of acryllic or plexiglass?

 

[clancaster23]

Yeah, inside the tank. Why glass? Maybe cost I guess. No real reason why, just sort of liked the idea of it being glass. I will be painting the face of it black to hide the two 2" white pvc 90 degree pipes for the drains to the sump.

 

[kbuser92]

Huh, I always thought acrylic was cheaper. I know we sell ours for $7/sqft cut. But yeah, I think it'll look good.