Hi , Gorilla Glue and Elmer's Ultimate Glue are in my experience , equivalants . The Elmer's brand is less expensive . They are a water activated polyurethane , and are marine quality , suitable for boat-building . Some additional properties are that the "squeeze-out" or excess can be easily carved off with a Knife after it has set . And if a glued portion needs to be machined , this polyurethane glue is far less damaging to cutting edges like sawblades or planer knives than yellow glue ( carpenters glue ). If I get some on my hands , it's hard not to , I rub my hands thoroughly with butter , wipe off with paper towel , then wash with dish soap , before it sets .
When I thin either yellow or white glue with water I have learned to use water that has been sterilized . I have had some go moldy when I didn't use sterilized water .
Hope this is useful to some .
---Burl--- from one sticky situation to another .