Weldon #4 with Applicator Bottle - 1/4 Pint - 4oz - 10308-1 Each

I needed to weld some acrylic pieces together(backing for a fuse/relay box) and this does a great job. If you want something nicer(I used black acrylic), find a different applicator. Just tipping the applicator, the liquid starts flowing out, made a mess the first time. The piece I was working on is not display piece, so I didn't worry about that.I like that this weld/melts the two pieces together versus gluing, gives it a stronger connection/bond. Other than the applicator, this worked great for what I needed it to do.I would suggest pouring back what you didn't use back into the container and make sure it's totally sealed. I left 1/2 of liquid in the applicator, and it evaporated. Applicator doesn't seal well.

I wanted to glue several sheets of Lexan together to make a clear cover display case. This stuff is perfect for this. It is very, very thin (much thinner than water) and wicks into the joint(s). It drips and splatters very easily. One tip that I discovered on the internet is that if you inadvertently splatter or drip some on unwanted areas, DON'T TRY TO WIPE IT OFF. Just let it dry (evaporate) and it will barely show.

I came back to order some more because I am running low, but it 100% does the job as advertised. Let's address the complaints:1) Impossible to open! Well, yeah, if it opened an easier it couldn't be shipped and wouldn't be safe. Ask yourself this: If you can't outsmart the container, should you really be using the contents? (answer: no)I went through the same frustration when I got mine, and instructions could be better, but it is intended for industrial use (pros), not us crafters, so take it for what it's worth.2) It's no different from rubbing alcohol ("I spilled it on my hands and nothing happened!) - Uh, no. It's meant to WELD acrylics. It is NOT (any sort of) glue. It literally melts plastics and welds them together, it does not ADD a glue/cement to adhere 2 substrates. If you have NOT researched the chemical bond process then please, do not buy this. YOU have a responsibility to understand the product before you buy and attempt to use it.3) It started to harden in the can! This is a lie. There is nothing to harden. Worst case it would evaporate (it will do so VERY quickly, so don't leave it open).4) The included squeeze bottle is... yeah, I don't use that. I ordered some small gauge hypos to use to apply small amounts when assembling my laser-cut acrylic projects.Overall it's much better than super glue when attaching various bits of acrylic to each other. THAT'S ALL. It is not for attaching anything else to anything else. It's for creating a permanent weld/bond between 2 or more pieces of (acrylics and similar composites).Also, note that it is SUPER TOXIC. Don't get it on your skin, inhale the fumes, drink it, or any other nonsense. Unless you want cancer, then have at it.

I have used this product before and it works great.

Watched a few videos on YouTube.they made it look simple. It's not as easy to work with as they made it to be. Buy with some trial and error it did what I was hoping for. I and with the LORDS guidance built a item that will change the lives for alot of people. Right now it is being patient.

Great item to help around the house

Super thin viscosity, thinner than Tamiya Extra Thin Cement. This works on thermoplastic materials. I tested it out on styrene and it is crazy strong and fast. I also tested it out on PLA for 3D printing it it works on there too. It is *not* gap filling, so have a good fit first.The bottle, much has been said how badly it leaks, and with good reason. There is no seal at the joint between top of bottle neck and the cap. It easily leaks along the screw threads, but there us an EASY solution.5/8" OD rubber O Ring. Put one of these in the cap and now it seals 100%. Done.The steel needle tip can clog if you drag it along a seam for styrene or PLA. I had to clip the tip off as I had no wire that small to clear it. Now that I am aware of this I can avoid it.Bulk cementing sheets of styrene together works fantastic.

You definitely need to practice and know how to use this product. I messed up a few of my acrylic table numbers so overall I would recommend that if you don't have to mess with weldon, then don't.