Attee with post- I have done some acrylic work on aquariums and this type of weld is the only way to go. Not the same material but similar handling properties and I only ever weld joints. I use the same principal- same applicator- same everything and it is by far and away the best way to weld overlap. It also will hold edge to edge welds fairly well but you need a very well joined edge- it has absolutely no glue properties, there is nothing in the solvent that remains after it evaporates. It is basically a solvent that dissolves the plastic at the joint and penetrates each joined surface a lttle ways- so basically your creating a new piece of plastic at the joint, made from a bit of both halves of the joint. Thus- its vital that the pieces are tightly opposed- so the plastics can melt together. This type of repair will not bridge even a small gap or air void- it des not work that way.

Its awesome for many things. Just a lot different than a glue or epoxy joint. If you had roughed up the joined ends woth the epoxy and carefully chosen brand and type it would have held a lot better. If you need to add material to fill in small voids and join a piece- this is not the path you want to take.