PU glue

Did you ever assume basketballs are stitched together and wonder how they stay airtight? In fact, modern basketballs are assembled entirely with adhesives, not stitching.    A standard basketball features four layered structures. The innermost rubber bladder holds air. Wound nylon yarn forms a suppo

Time-saving, labor-saving, uniform bonding – the efficiency philosophy behind assembly lines.

What did the earliest glue look like? The “Millet Glue” of the Tang Dynasty – the ancient equivalent of modern super glue.

Does applying glue make it stick firmly? NONONO

Cold bonded shoes rely primarily on high-quality glue to bond the sole to the upper, requiring no stitching or high-temperature vulcanization. The glue acts as the shoe’s "invisible skeleton", and its correct application directly determines durability. During the process, attention must be paid to cleaning, even glue application, pressure fixation, and full curing. In daily use, avoid soaking and direct sunlight. If the glue comes apart, timely re-gluing can effectively extend the life of your beloved shoes.