Rubber grommets for electrical cord are not just one particular type of rubber grommet, but all rubber grommets that can protect the electrical cord from sharp edges and other things that can damage them. In general, the primary purpose of rubber grommets is the protection of wires and cables, so grommets for electrical cord can be Type A, Type D, Type B, as well as long neck rubber grommets. Which type you choose depends on the size of the hole as well as the diameter of the cable and the shape of the cable. Grommets for electrical cord have as many as three diameters – inside, outside and groove and you need to know that when choosing a size. Also, groove width and thickness play a role, and all this should be a perfect fit with the hole, otherwise the rubber grommets will fall out of the hole and will not be able to protect electrical cords in the right way.

Rubber is the best material for contact with electricity, so any material you choose will be suitable for grommets for electrical cord. However, you should pay attention to some other characteristics of each individual rubber-like material. For example, the highest temperatures can withstand silicone and FKM, while if the relationship between price and durability is most important to you, then natural rubber is the best choice. 

Many customers make a mistake and do not pay enough attention to the material, thinking that they are all the same or very similar, because they belong to the same family of materials. Although they all have some general characteristics in common, some other characteristics are very different and if you choose a rubber that does not tolerate high temperatures, for example, and put a rubber grommet made of this material at high temperature, the rubber will melt and that can turn into disaster. So be careful when choosing material grommets for electrical cord will be made of.