weld on #40 ???'s

[necrocanis]

hmm your thread brings up another idea I have always wondered about. Silicone sticks great to both glass and wood. With as much silicone as people use on their windows why not just coat the entire inside of the wooden structure with silicone? Just use a trowel or something to smooth it over the entire surface. lol. I"m sure that would smell lovely. haha. Thinking 16' x 8' x 2' on the pond lol. Have a few minor kinks to work out then I can get going. lol, I realize I am a pretty ghetto fish keeper. For me it's more about the fish than it is the tank though. I'd rather spend as little money as I can on the enclosure so I can make it as large as possible so I can focus more money on the fish, food, and filtration. Some people just don't get that lol.

Sounds ambitious. Lol...Only on MFK do you hear someone nonchalantly talking about starting up a pond this weekend. How big and deep are you planning to go?

Here is my original build when it was silicon on the window... (i used to be "spiff", some some how took that account) http://www.monsterfishkeepers.com/f...9560-Pict-of-my-DIY-build-now-recycling/page4

I'm no longer a fan of Pond Armor or silicon after having issues with both.

 

[spiff44]

Yeah, that's exactly what I tried when I couldn't find the pond armor pin-hole culprits. It doesn't work at all on a large surface. Just imagine smearing it around just like you said, except its already skinning over with in minutes.. So unless you work super fast and perfect the first time you'll get a really F-d up application. Looking back, this was in indication of my desperation and complete lack(lost) faith in the pond armor.

Then the sanitred totally saved my butt.. it worked even after just slathering it all over the existing crap including the silicon. I knew that wouldn't be permanent but it still held by its adhesion strength alone for a couple years. But eventually it started peeling off the silicon so I had this 30ft flap underwater around the perimeter of the window... it was like that for at least 8 months... but eventually the water worked behind it and it leaked.

So that whole time was just a product test for the Sanitred that I thought passed with flying colors.

Its done right now, all the silicon stripped out and the sanitred bonded right to the acrylic window... so simple.

 

[Z Trip]

Anyone know where I can buy some Weld On 40? Must be able to ship, to canada, I cannot find it at all.

 

[Silent Bob]

Anyone know where I can buy some Weld On 40? Must be able to ship, to canada, I cannot find it at all.

Haven't read the whole thread so don't know if this company was listed but check with mcmaster.com. I work down the street from them and they carried it but I don't know if they ship to Canada.

Sent from my SAMSUNG-SGH-I317 using MonsterAquariaNetwork App

 

[Phixer]

So this may seem a little silly but I am overly curious as I read through the DIY tanks section. I always have a curious mind about things and several threads I read gave me a brief inspiration (insanity???) Ok so here goes.

What if you bought a tub of Weld on #40 and coated the inside of your plywood tank with it then of course using it to glue a front viewing panel on as well?? Would this work at all? I'll let you guys debate it out and I will come to check later.

It would cost a ton of money. A 230ml tube of 42 is about $60. 40 is a little less expensive because you mix it yourself. It's also brittle so as the plywood flexes more than likely you may develop fracturing in the cement. The draining and filling of the tank in addition to moving it would probably cause it to crack also. Finicky when applying it, too thick and it will boil (exothermic reaction) and create all kinds of bubbles when dry.

40/42 is great stuff but IMHO is better suited for bonding acrylic to acrylic. Sealing an acrylic viewing panel in place would be the job of Dow 795. Despite what some may say, silicone will also adhere to acrylic and also works well as a gasket for shored in place acrylic viewing panels.