The wear-resistant diamond pattern rubber strip with a semi-vulcanized CN layer is the first considering rubber strip in the pulley lagging. It makes the cold-adhesive pulley lagging can quickly replace hot-cast roller encapsulation and become the mainstream encapsulation method.

1. What is Diamond Rubber Pulley Lagging Strip

A diamond pattern needs to be carved on the surface of the wear-resistant diamond rubber strip, it can totally increase the friction between the rubber strip and the belt. In addition, the grooves between the patterns can help drain water or mud smoothly. As the material adhesion is reduced, the surface friction coefficient can keep a high value, which can avoid the sliding friction.

The wear-resistant diamond rubber strips can be divided into semi-vulcanized CN layer rubber strips and ordinary rubber strips. The rubber strips with the semi-vulcanized CN layer was successfully developed by the Germans. Compared with the ordinary rubber strip, the semi-vulcanized CN layer rubber strip has an extra layer of the semi-vulcanized layer.

When using the semi-vulcanized CN layer rubber strip, there is no need to polish and it can produce a self-vulcanization chemical reaction with the cold vulcanized glue. The chemical reaction between this glue and the semi-vulcanized CN layer can proceed quickly at low temperature and normal temperature, so it is called cold vulcanization bonding.

2.The difference between semi-vulcanized CN layer rubber strip and ordinary rubber strip

The difference between the semi-vulcanized CN layer rubber strip and the ordinary rubber strip is that the adhesive layer and the wear resistance coefficient are different.

  • Different Adhesive Layers

The most obvious difference between the CN layer rubber strip and the ordinary rubber strip is the bonding layer. The RIT blue CN bonding layer does not need to be polished. During the pulley lagging process, it can form a cold vulcanization reaction with the cold vulcanization adhesive, which makes the rubber strip vulcanize on the surface of the roller. However, the ordinary rubber strip does not have an adhesive layer, you need to polish to increase the bonding surface to meet the bonding requirements.

  • Different Wear Coefficient

The rubber material is an important factor affecting the wear resistance of the pulley lagging. The CN layer rubber strip is made of IR/BR/SBR, which has good flexibility and adhesion of natural rubber. Besides, it gets the heat resistance, wear-resistance, and aging resistance from styrene-butadiene rubber.

3. How to distinguish semi-vulcanized CN layer rubber strip?

As a necessary material for pulley lagging, semi-vulcanized CN layer rubber strips have always been used at a high rate. Some people use ordinary rubber strips as semi-vulcanized CN layer rubber strips to obtain huge profits. Knowing how to distinguish semi-vulcanized CN layer rubber strip can not only guarantee the effect of pulley lagging but also save a lot of money. You can distinguish it from its appearance and specific operation.

  • Based on the appearance

The color of the bonding surface should be different from the semi-vulcanized CN layer rubber strip surface. Besides, there are two layers on the adhesive surface of a semi-vulcanized CN layer rubber strip. For an ordinary rubber strip, you just can see one layer and the color is no different.

  • Based on the specific operation

The semi-vulcanized CN layer rubber strips don’t need any polished, it can be directly bonded after gluing. And it just needs a brush with the glue once.

Due to the characteristics of the semi-vulcanized layer, the bonding has a chemical reaction in addition to the physical properties, it ensures a super-strong adhesion between the rubber strips, the glue, and the surface of the roller.

If your rubber strip is not real, you need to polish the bonding surface before you start your bonding process. And you may need to brush glue twice and because the bonding just relies on the physical bonding, it easy to cause cracks in the later use process and affect the service life.

With these specific operations, you can know exactly what is the real semi-vulcanized CN layer rubber strips.