Super glue or cyanoacrylate glue, sticks very quickly. Can be used on soapstone and serpentine, for example, to fill cracks or glue broken pieces together. As the adhesive is extremely liquid, it also fills cracks due to the capillary effect. In this way, the adhesive penetrates deeper into the crack, making the image stronger again and reducing the risk of breakage. With the accompanying activator, a very fast, solid and strong bond is possible.