Most sanding belts are now made with a diagonal splice joint that is held together with a strong piece of special tape. Then use CA adhesive to bind the bias binding tape to the cleaned edges of the sanding belt you want to make or repair. His solution is to store new and used belt sander belts in sealable freezer bags until he’s ready to use them.
“First, peel the remaining factory tape off the belt splice. Cut a piece of cloth bias tape about 2” longer than the width of the belt. Lay one end of the belt, grit-side down, on the bench; then apply cyanoacrylate glue to the end of the belt. Wrap the belt around and repeat the gluing process to reconnect the ends of the belt.
Yup Drew, Lap joint belts have arrows, so the joint does not catch on the platen. Tod & Wes, I had heard that the shelf life of belts is not at all too long. Wes, I am thinking that the tape used to join these belts looks a lot like fiberglas strapping tape.
how to glue sanding belt Related Question:
What tape is used to join sanding belts?
Apply the Scotch 8959 tape by using a small piece of swimming pool noodle or other firm foam/rubber like a squeegee pressing firmly and leaving overlap on both ends, make sure there are no air bubbles and the tape is perfectly flat covering both splice ends equally.
How are sanding belts joined?
Sanding Belt Basics The format of the belt is that a large or small strip/piece of the material is cut to a specific size and then the ends are brought together to form a loop. As you might expect, the joint is the point at which the two ends meet and are attached.
What causes sanding belts to break?
A reason why your belt could have popped could be because of excessive loading of the material being sanded. While this is not the most common, we have occasionally seen that foreign particles in the machine or a wide variation in workpiece thickness can cause too much pressure and thus cause the belt to snap.