Shock cords are widely used because of all the benefits they provide to users. Those using these ropes must make sure to acquire the correct ones for the specific job at hand. Knowing about shock cords helps to make shopping easier, while also ensuring that you are getting the right cords for the job. Below, we want to address some of the most common questions we hear about shock cords. We hope that the information gives you good insight as to what these cords are and how they work.
What is the difference between nylon and polypropylene cords? The polypropylene version is more commonly used than the nylon variant. Polypropylene cord is considered general purpose because they withstand the elements. In direct sunlight, a nylon cord will deteriorate and break quicker than its polypropylene counterpart. Nylon should be used in marine applications.
Does breaking strength apply to these cords? Shock cords are tested by a percent of their expansion. It is recommended that expansions, during the application, is 50% of the resting length. When stretching cords beyond 50% of the stretch working limit, there is a decreasing of shock cord diameter that will negatively affect the limit of the shock cord’s fitting holding capacity.
What is a bungee cord, and how does it differ from a shock cord? The two terms are to be used interchangeably. Shopping for bungee cords is the same as buying for shock cords.
If you have further questions, you should not hesitate to reach out to our team.