How bad are bubbles in acrylic seams?
- Thread starter davis101
- Start date
Is there a way to get #4 into that seam? Like say pushing a sewing pin through the thinnest point on the outside or something?
People are just saying not giving factual numbers, Ill give it to you very simply, you like many here are rookies, dealing with weldon 4 is very hard to do well and as stated you are a rookie like most of us which is hard to use and make perfect seams, Your problem. Weldon 40 will make life easy as its a more forgiving product and you can make it look easier with less effort, Simple easy best way to put,
I mean your asking someone how to help fill 4 into a bubble seam, should have asked these question before the build and got some help and input and learned as much as possible before potentially wasting hundreds of dollars worth of acrylic.
But overall its your project!!! Do as you want and not as others are saying here if you want or take the advice and try it, at the end of the day it is your tank you are responsible for it and making it as nice or bad looking as it is. Stop setting stuck on a little technicality when someone says 40 times or 60 times better or what, I do not have the numbers here in front of me and I can tell you after working with all of these products I would use 40 and 40 only from now on.
If you have to order something so what, you already have spent how many days writing posts asking why its 30 or 40 times stronger after you ran the math yourself. Take action and do what you want to do or need to do and get the project back up and going.
HA HA just noticed your the same guy who was thinking his ray was attacking his arowana, Its all coming back to me now, Best of luck, Over and out,
I mean your asking someone how to help fill 4 into a bubble seam, should have asked these question before the build and got some help and input and learned as much as possible before potentially wasting hundreds of dollars worth of acrylic.
But overall its your project!!! Do as you want and not as others are saying here if you want or take the advice and try it, at the end of the day it is your tank you are responsible for it and making it as nice or bad looking as it is. Stop setting stuck on a little technicality when someone says 40 times or 60 times better or what, I do not have the numbers here in front of me and I can tell you after working with all of these products I would use 40 and 40 only from now on.
If you have to order something so what, you already have spent how many days writing posts asking why its 30 or 40 times stronger after you ran the math yourself. Take action and do what you want to do or need to do and get the project back up and going.
HA HA just noticed your the same guy who was thinking his ray was attacking his arowana, Its all coming back to me now, Best of luck, Over and out,
Is it not justifiable to ask questions. Not everyone on here is a genius and I'm sorry I like to have a little clarification on the advice given to me. I did countless hours of research and I have literally read through every thread on here about building acrylic tanks. That last question was directed towards Wednesday, not you. I remembered him saying in his sticky that weldon 40 is 30 times stronger than 4 . I'm just curious where that number comes from, not accusing anyone of anything.
That being said, I would rather someone answer my question if there is a way to get weldon 4 into the middle of the seam without destroying the seam? It's completely bonded on the outsides of the line, but has anyone ever pushed a needle head through the seam until the needle from the dispenser bottle can reach the gap?
That being said, I would rather someone answer my question if there is a way to get weldon 4 into the middle of the seam without destroying the seam? It's completely bonded on the outsides of the line, but has anyone ever pushed a needle head through the seam until the needle from the dispenser bottle can reach the gap?
Tip and pour with 40. That simple. Ignore this advice and some day, in the not too distant future your tank will fail. The names Didysis, Wednesday13, and dieselhybrid will haunt your dreams. Saying...I told you so.
Please listen and order the correct product no matter how hard to find. You owe it to your fish and your wallet.
Please listen and order the correct product no matter how hard to find. You owe it to your fish and your wallet.
My info is straight from the weld-on website and found in the product descriptions..i did not make it up on the fly. As for getting more glue into ur "dry pockets"...the needle applicator used for #4 will do that. Run the applicator/glue along the sides of the dry spots inside and out as there not sealed and the glue should find its way into the pocket if ur lucky. Theres a fine line for solvent (#4) and its a true skill to master. Work area needs to be level, the acrylic needs to be held together with tape and clamps every few inches to achieve a perfect bonding area for #4. Too tight of joints and u get dry pockets...too loose joints and it wont bond either...fine line to walk.... As for psi...say 4,000 is the #....with all those dry pockets ur already at 2,000 or less psi since the sheets are not bonded correctly. #4 should not have been used in the first place for 1/2" material and ur already starting in the hole so to speak. Only way to fix it now is try to fill the dry pockets with #4 and finish the job with #40. If #40 gives u 4,000 psi with a butt joint.. the psi rating surely raises with another 1/2-1" of solid weld-on filleted in the inside seams.
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Checkout eplastics.com...they rate #40 at 7,000psi on a normal butt joint. Again, that rating is surely higer when filleting the inside seams with quadruple the amt. of #40 on a fillet than a normal butt joint. #4 is a great glue for 1/4" material and fixing dry pockets on old tanks that seperate as a first step....as uve found, its not easy to work with on other thicknesses. Even 1/4" takes alooooot of practice to get a product without dry pockets/bubbles. Whats another $200 to repair ur tank correctly when uve spent over 1k already.
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Straight up man listen to Wednesday. Out of everyone i met on this forum, when it comes to acrylic tanks, his word is law. My 2 pennies, i would blindly listen to him at this point because he has 1 million times more experience than I do. When I have made and repaired as many tanks as he has, then I will second guess his advice. Shop around for the #40, amazing quoted me 45-50+ shipping, found it for 25 + shipping when I needed it. Just looked at same website, it went up to 30 now. My regret is not ordering 4x what I did in same shipment to save up shipping, it's something I always want around from now on.
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