It’s stick glue.

Stick glue is a special hot melt glue stick (stick glue) for hot melt glue guns. It is mainly used for bonding or filling handicrafts, jewelry, plush toys, stuffed toys, circuit boards, and electronics. Fixing of components, coils, metals, plastics, ceramics, glass, DIY, student supplies, etc. You don't need to buy a hot melt glue gun for home use. Just bake it with a lighter and wait for the hot melt glue to melt before applying it to the objects that need to be bonded.

Extended information

Usage precautions:

(1) The surface treatment of hot melt adhesives on the objects to be adhered is not as strict as other adhesives, but Dust and oil on the surface of the adherend should also be properly treated so that the hot melt adhesive can better perform its adhesion function.

(2) Fast operation is a major feature of hot melt adhesive. The working time of hot melt glue is generally about 15 seconds.

(3). Hot melt adhesive is relatively sensitive to temperature. When the temperature reaches a certain level, the hot melt adhesive begins to soften. Below a certain temperature, the hot melt adhesive becomes brittle. Therefore, the temperature changes of the environment where the product is located must be fully considered when selecting hot melt adhesive. It will soften and melt when the temperature exceeds 85°.

Baidu Encyclopedia - Stick Glue