Weld on 3

[mcavanah]

Where can i get weld on 3 in the round rock austin area? I have a 200 gal to reseal. Thanks matt

[captexas]

200gal ACRYLIC tank?

[mcavanah]

YES its a flat back hex it seeps out of the back two lower corners

[mcavanah]

I am newer to the salt water fish game i always have questions and need lots of supplys and lifestock to fill it

[MissT]

you should be able to get it at Regal Plastics

[captexas]

Ace and others might chime in but in my experience, I wouldn't use #3 to seal up existing joints that are leaking. At least not by itself. I would probably use it to get in the small voids and then I would use #40 over it as extra insurance. It's a two part mix that is thicker and will bond it better. If it was brand new and the joints were still clean, then maybe adding the thinner solvent would work by itself.

[brewercm]

I second what Chris said. Not sure you'll be able to find any 40 locally though. There may be some members that have some that can help you out though.

[matt]

Weld-on #3 will not work to fix leaky seams. Want some more bad news? If you have an acrylic aquarium that used to hold water but does not anymore, and there is no visible damage like a crack or chip that's responsible, you're probably looking at potential total seam failure under water pressure. Acrylic seams are welds, not glue joints. They are not supposed to degrade at all over time, meaning that something is wrong with the tank. You can try using #40 to fix the seam, but usually that only works if the seam leaked from the start, which would indicate that the seam didn't quite seal but is strong. Likewise if the tank got damaged somehow. An old weld joint that just starts to leak is the beginning of the end. Sorry, and I hope I'm wrong for your sake!