I give one star because I can't give less, anyone thinking of buying it should save themselves money and not do it, for a puzzle with 1500 pieces I had to open the bottle with a knife and spread all the glue only then did the puzzle stick and I was able to put it in the frame I wanted.

It doesn't last at all for what it says. I used the whole bottle on a 3000-piece puzzle and the pieces were as if I hadn't put anything. It really doesn't resemble glue. A cheap one did a better job.

I was very satisfied. The sponge on the front part helps to spread the glue evenly and without leaving any residue. Also, the quantity is sufficient and I would definitely buy it again in the future.

It is quite convenient to use. It has a sponge in front to spread the liquid glue on the puzzle. But in 2 puzzles that I used it, I had to do 2 or 3 layers with my hands to have a sure result. However, do not expect to lift the puzzle and have it like wood and nail it to the wall, you will need a cardboard or hard paper glue to make it a frame. Which I have already done in one of the puzzles.

Effective. I glued four 1,000-piece puzzles with a double pass and there was still a little left in the bottle. It does the job, whether you just want to secure the puzzles so you can store them or frame them. Only time will tell about its durability.

The glue is good, but the system with the sponge creates a lot of foam and you need to constantly press the valve to release glue, so it is very tiring and time-consuming. In the end, I opened it and dipped a brush inside.

I am quite satisfied. I had purchased this product years ago and I recently found it by chance (9/2020). So, I wanted to stick a puzzle that I had made and surprisingly it did a very good job. Definitely, you will have to pass the puzzle twice to be 100% sure that there will be no accidents. However, the puzzles that I had stuck years ago with this specific glue, are preserved in very good condition (steadily). I recommend it without a doubt.

It does its job, but I think the corresponding gel products are more convenient. I had to apply it a second time because it wasn't stable the first time. The negative aspect is that I didn't know if the amount of glue I was using was enough. The positive aspect is that it doesn't dirty the hands.