Often referred to by the brand name Krazy Glue, this class of glue, cyanoacrylate, is the soul of the special effects industry. It was originally formulated as emergency battlefield sutures during the Vietnam War and I know model makers who swear by CA glue for stitch-worthy cuts (I’ve never tried it). Lorne Peterson, one of the original model makers on Star Wars and an old friend, was the one who discovered CA glue as an Eastman Kodak product and introduced it to the ILM model shop. It’s import in the special effects industry cannot be overstated. CA glue is highly versatile and comes in liquid form with varying degrees of viscosity, from the super-thin (very tricky to use right) to the super-thick gap-filling kind, to the newest version, flexible CA glue, which I’m just starting to use, and like a lot. All of them can set when exposed to air or be accelerated by adding a “kicker.” Once set, it becomes a hard acrylic that tends to be brittle, so you want to be careful.