Depends on the kind of glue - "Name your glue"
wool, yarn, string , and glue
To create durable and long-lasting projects using fabric glue with yarn, it is best to apply the glue sparingly, press the yarn firmly into place, and allow sufficient drying time. Additionally, reinforcing the glued areas with hand-stitching or a fabric backing can further enhance the project's durability.
There is no metal that starts off as glue.
Iron-on letters typically adhere best to fabric rather than yarn, as yarn's texture can prevent a strong bond. Additionally, the heat from the iron may not effectively penetrate the fibers of the yarn, leading to poor adhesion. For better results, consider using fabric glue or stitching the letters onto the yarn instead.
Depends what kind of glue.
To make yarn glue, you typically combine natural or synthetic fibers with a bonding agent like PVA (polyvinyl acetate) or a similar adhesive. The process involves mixing the fibers into the adhesive to achieve a desired consistency, allowing the fibers to be evenly coated. Once mixed, the glue can be applied to surfaces or used in crafts as a flexible bonding solution. Adjusting the ratio of fibers to glue affects the texture and strength of the final product.
you have to put more glue on it, it will glue itself to the old glue, and be easier to remove
Try Goof Off, it softens Super glue so you can pick it off.
It is a version of PVC glue.
To finish your yarn project and remove your needles from the yarn, you will need to bind off your project.
Turn the glue gun on to loosen the glue, then, if the glue is persistent, use a wooden stick to CAREFULLY pick the glue off.
Depends on the type of glue, but most will come off with Goof -Off or Goo-Gone.