What is the difference between tensioning and securing?

With decades of experience to our name here at Ibex Marina, we have a long history of supplying shock cords to a diverse range of markets, encompassing everything from aerospace and transport to sports and leisure. The versatility and performance of our shock cords means that they can be used for a variety of applications, many of which involve tensioning and securing. While they sound like very similar terms, they are subtly different in a few important ways – so in case you need a quick refresher, here is what you need to know.

What is tensioning?

In a nutshell, tensioning refers to the act of creating and maintaining controlled tension in a material to achieve a specific purpose. In tensioning applications, shock cords are used to pull the material taut, so that it remains in place against external forces like wind or movement.

For example, one common application of tensioning can be found in outdoor equipment; tying down a tent or tarpaulin. Another instance is their use in fitness equipment, where the cord’s elasticity provides resistance during exercises. It is a neat demonstration of how shock cords are particularly suited for tensioning because of their elastic properties. Essentially, this means they can stretch and return to their original length without permanent deformation.

Effective tensioning involves carefully balancing stretch and resilience, so as with any other application, it is always important to choose the right cord, so you can have peace of mind in longevity and reliable performance.

What is securing?

As opposed to tensioning, securing involves fastening or holding objects in place to prevent unwanted movement or separation. The goal is stability rather than elasticity, and when you are securing an object, generally you will want there to be less stretch than in tensioning applications.

For example, when you are securing goods or cargo to a roof rack, the major advantage is that they can adapt to the load while holding it firmly. This is unlike traditional static fastenings, like ropes or straps, as shock cords can adjust dynamically to minor shifts without losing grip.

Securing typically requires less movement than tensioning, but it still benefits from the adaptability of shock cords. Their ability to stretch slightly makes them an excellent choice for any sort of scenario where fixed fastenings might fail (for example due to vibrations, or shifting loads).

Key differences between tensioning and securing

So, having explained the differences in a bit of detail, here is a key summary of the main differences between tensioning and securing.

• Tensioning aims to maintain controlled pressure or force over a surface or distance, while securing is focused on immobilising or stabilising an object.
• Tensioning typically demands highly elastic materials (shock cords are the perfect example), capable of withstanding repeated stretches. Securing may rely on less elastic options, or shock cords used together with hooks or knots to lock items firmly in place.
• Tensioning often involves creating a balance of forces, so there is often a bit of give in the cord being used. Securing, meanwhile, is more about fixing an object in place, ensuring minimal movement through strong, adaptable fastening.

We supply shock cords for both types of applications here at Ibex Marina Ropes, and across an extensive range of markets, so if you ever need any advice on the best shock cord for you, give us a call on 01706 360 363. You can always rely on our team to give you answers in as much or as little detail as you would like.