turning 2 240's into a 480?

  • We are currently upgrading MFK. thanks! -neo
Use lots of weld on 40 is all I can say

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Sell both your 240s and buy a new 480.

Edit but since that's not an option do it =:) post lots of pictures
 
Sure I could do it for you...but im not sure if you could do it yourself lol....Very sketchy to cut off the back walls of both tanks in itself let alone scab patch em all back together. #4 will not work and I sure as hell wouldn't trust a 3-4" stip of acrylic in the middle of the side walls where bowing will be the most. Good thing is you have a lot of extra material your cutting off that you can use to your advantage. If it were me I'd put all of that material back into the tank. #40 is the glue you need and your going to need a good 2 gallons or more imo. Instead of using 3-4" strips to "bandaid" patch the tank together I'd cut an entire new side piece that fit on the inside of the tank and melt the whole thing to the side with #40. If your good it should still be crystal clear ;) ....you may not have enough to do this on the bottom but a good -12"-20"x96" piece should be plenty to throw down to connect the two tank bottoms together. I'd also try to keep both tank tops as intact as possible and glue another patch up underneath where they meet. Eurobracing is a term used for glass tanks, This is not the typical method of bracing for acrylic and it does not hold up nearly as well as an entire top sheet style brace with holes cut out. It is very possible to melt an entire sheet of 1/4" over whatever bracing you have on the top to help tie everything together that much more. You just need to think more about melting larger pieces of acrylic where the tanks connect not little dinky patches and you have a pretty good shot of making it work and look good. Weld-on #40 is good stuff, its the only glue you can physically melt 2 sheets of acrylic together with without bubbles not just a butt joint. example... making 1/2" acrylic out of 2 sheets of 1/4". Most of my tanks all have pieces of acrylic joined in this fashion, sometimes you have to look closely but you can see them. I have a 500 gal that's bottom is 5 pieces of 3/8" all melted together with a sheet of 1/4" on top to make 5/8". very plausible if you take a bit of time to think it out and use the right methods.
 
wednesday13 said:
Sure I could do it for you...but im not sure if you could do it yourself lol....Very sketchy to cut off the back walls of both tanks in itself let alone scab patch em all back together. #4 will not work and I sure as hell wouldn't trust a 3-4" stip of acrylic in the middle of the side walls where bowing will be the most. Good thing is you have a lot of extra material your cutting off that you can use to your advantage. If it were me I'd put all of that material back into the tank. #40 is the glue you need and your going to need a good 2 gallons or more imo. Instead of using 3-4" strips to "bandaid" patch the tank together I'd cut an entire new side piece that fit on the inside of the tank and melt the whole thing to the side with #40. If your good it should still be crystal clear ;) ....you may not have enough to do this on the bottom but a good -12"-20"x96" piece should be plenty to throw down to connect the two tank bottoms together. I'd also try to keep both tank tops as intact as possible and glue another patch up underneath where they meet. Eurobracing is a term used for glass tanks, This is not the typical method of bracing for acrylic and it does not hold up nearly as well as an entire top sheet style brace with holes cut out. It is very possible to melt an entire sheet of 1/4" over whatever bracing you have on the top to help tie everything together that much more. You just need to think more about melting larger pieces of acrylic where the tanks connect not little dinky patches and you have a pretty good shot of making it work and look good. Weld-on #40 is good stuff, its the only glue you can physically melt 2 sheets of acrylic together with without bubbles not just a butt joint. example... making 1/2" acrylic out of 2 sheets of 1/4". Most of my tanks all have pieces of acrylic joined in this fashion, sometimes you have to look closely but you can see them. I have a 500 gal that's bottom is 5 pieces of 3/8" all melted together with a sheet of 1/4" on top to make 5/8". very plausible if you take a bit of time to think it out and use the right methods.
Click to expand...

With all that said I have decided not to do it. Not that I don't think I'm capable, but it seems like a larger headache than it's worth, especially doing it alone.
 
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