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A closer look at using Weld-on Acrylic cement. Weld-on 4 and Weld-on 16 are featured as the two cements that i use to build an acrylic aquarium.
You will need these two cements to build an acrylic aquarium, like the one seen here: http://www.youtube.com/watch?v=FYhfV7SvoRs
The king of DIY

Can I drip it into my eyes?
Can I use this to fix a plastic sex toy?
thanks i was wondering about the differnce
Great video! Always can tell a Canadian when they say “out” lol
I can usually obtain enough solvent in the bottle for a reasonable sized job by simply squeezing the bottle a bit (displacing air), then inserting the "needle" of the upside down bottle into the solvent and slowly releasing the squeeze on the bottle.
By reasonable sized job I mean enough so that I don't lose too much solvent due to evaporation while having to reopen and squeszing the solvent from the bottle back into the storage canister.
Poda myree
Why does the word (OUT) sound funny when say it and the rest of your words sound normal, scratching my head
Do you know if this will also work on PVC?
If you only use a medical syringe with a needle, then the glue will react with the plastic of the syringe and will the needle clog?
Can i use super glue instead of this?
To get the solvent into the bottle without using a syringe, you can put all the pieces of the plastic bottle together, squeeze it (making sure its empty, of course), dip the tip into the bottle, let go/unsqueeze the bottle and the solvent will draw itself in.
I want to seal a crack in the plastic window in my van. Can I do that with 16? Want to seal it from rain and fuse the hairline crack between the pieces without removing it from the frame. Window is a skylight window (flat) at a 45 degree angle.
does those two solution can make the broken part disappear?
u have no clue it is not a glue it is a bonding agent
How do you remove run off when building the tank?
You're video said how to glue yet you didn't glue anything together
sir India can perches glue
engglis sub please
Hi I am interested in product I am from Pakistan Karachi city
My WhatsApp and IMO number +923212133655 please send me product and payment system
Whats the difference between Weldon #3 & #4 ?
Where to buy it? I live in Hong Kong. Ebay and Amazon too expensive with shipping.
how do i remove the stain that i spilled accidentally on the acrylic?
Thanks for the great VID's Joey. I am completing my first build. Please can you point me to the VID where you demonstrate how to remove unwanted WeldOne 4 stains?
Hi! Do you have a recommendation for gluing mirrored acrylic? I have tried an epoxy glue as it doesn’t seem to eat away the mirrored backing but it doesn’t grab on as well and I’ve had parts come apart. Thank you!
Gloves. This stuff is super toxic.
I can use this for center brace that broke
where do I order these?
Helloo . Friend . Plz help me . And suggest me some thing to remove that kinnda glue joint from acrylic box and than how to re joint . Plz reply me
where can you buy it?
Joey, or anyone else who has cemented acrylic successfully: On the four brand new sheets I will be using, each one has a sort of "lip" on the longest edge. While all sides are perfectly square/straight/gapless, do I need to prepare that one side by softly sanding it down. I can provide pictures incase I'm not making too much sense. Thanks!
I came to ask a question but it looks like questions don't get answered here. Does the King have no time for His subjects?
Hi joey, i live in Montreal, do u know how to get the weld on 4 in Canada or what others brands are on the market? Thanks
Great video. For anyone having a hard time sourcing Weld-On 4 (the stuff is not only expensive, but hard to find), it can be substituted by pretty much any dichloromethane (methylene chloride) based solvent. Many paint strippers (but not all) found at the hardware store contain 60%+ dichloromethane and will work just as well. Just go to the manufacturer's website and check the MSDS for composition. I've tried Recochem's Heirloom paint stripper. Works perfect and costs about half the price of Weld-on 4.
Hi got to the point where I have sourced my acrylic supplier and waiting to receive the can of Weldon 4. I have a doubt… How do you deal with spills? Outside, I can't see a big deal, specially if you plan to use a router to round the edges (and then polish) but on the inside, how do you deal with the extra that comes out once you clamp it down? Thanks
You can't see it because your camera isn't focused.
The barehands are making me cringe, this stuff contains MSDS
will weld on 4sc work also? thanks
What type of acrylic should I get for my 300 gallon aquarium build. I've seen things being called cast cell, etc. Which one do I need?
Can I use it for gluing acrylic baffle to glass sump tank? Is it reef safe?
My acrylic joint did not make a clear weld… what can I do? I tried for a long time to get all the saw marks off with my scraper but it did not quite work. What can I do? Is the seal going to work even though its foggy? I have weldon 16 and 4
what would you recommend to bond acrylic flat surface to flat surface in multiple the affect would be a stack