These strips are not made of natural latex but of sturdy rubber in deep black.
Very suitable for making belts, or handcuffs, cuffs, collars, a harness, etc. Also very suitable for creating constructions that need to withstand pulling or bear weight.
This rubber contains hardeners. It is still very flexible but does not stretch like natural latex. So you can directly make a belt from it: punch holes, add eyelets, a buckle, and done! No hassle with webbing and layering.
Another advantage... you can glue parts together with contact cement. Very, very important: degrease, degrease, and degrease. Even better is to lightly sand the surface with fine-grit sandpaper. Then degrease with thinner. Let it dry thoroughly. And then glue.
A good adhesive is Bisonkit transparent from Bison, but several other contact adhesives work well too. Note: always read the instructions of the glue you use, because not every glue works the same!
However, gluing is not always necessary.
You can fasten a belt well with rivets. If you're unsure, glue first, then use the rivets. Tip: punch the holes first!
Easy to cut with a sharp rotary cutter. Be sure to cut at a 90-degree angle—cutting at an angle will be visible!
Note: heavy rubber is made from petroleum, not from natural rubber. If you glue natural latex in light colors onto heavy rubber, the latex will discolor over time. The darker the latex, the less visible the discoloration.