Due to the fact that we have started to use his products materials of UHMWPE fiber (ultra-high-molecular-weight polyethylene), we publish this article to familiarize themselves with the basic properties of UHMWPE and products from them.

This article provides a list of the basic requirements for ropes used for the most common tasks. And below is the compliance with these characteristics of ropes made of UHMWPE fiber - known under the trademarks Dyneema® (owned by DSM, the Netherlands) and Spectra® (owned by Honeywell, USA).

• Low creep - Creep specifies how much the rope stretches during exercise. The more rope stretches, the weaker it becomes.

Among the high modulus polyethylene fibers, Dyneema has the lowest creep and long-term retention of this property.

• Resistance to temperature - for use in extreme climatic conditions and temperatures, it is necessary to have a rope that has minimal changes in strength in different environments.

Fibres Dyneema / Spectra have continued strength in the temperature range from -150 ° to 70 ° Celsius or -238 ° to 158 ° Fahrenheit - very robust temperature range, which provides coverage for most tasks.

• Tensile strength The most obvious sign of a good multipurpose rope is how well it holds under load.

Dyneema fibers are 15 times stronger than steel (when matched in weight) and can handle heavy loads.

•  The weight - Ideal for many rope climbing, sea / fishing, and many other things, a rope, which has a high strength to weight ratio.

With the same weight, Dyneema rope is 15 times stronger than steel. High modulus polyethylene rope has the highest strength-to-weight ratio.

• impermeability - Water resistance is important for a variety of reasons. First, fibers that do not absorb water are more durable. Plus, a fiber that doesn't absorb water won't get heavier when used in wet conditions.

Dyneema fibers do not absorb water.

•  Security - a safe rope is very important when lifting or lowering weights. The user must be confident that rupture will not cause injury. Steel rope is the best example of what can cause injury to a person who is in close proximity to the rope during a fall.

Dyneema rope is absolutely safe to break, unlike steel rope, which can cause serious damage if it bursts.
In addition to the benefits listed above, Dyneema fibers are highly resistant to acids, salt water, alkalis and chemicals. They also retain their integrity after being bent and bumped.

• What is the area of ​​application in ropes from Dyneema / Spectra fiber?

Dyneema 12-strand ropes are widely used in marine and fishing activities. In addition, they have become favorites among climbers and arborists. For arborists, loggers, Dyneema fibers' oil and gas resistance and cut resistance make them the ideal choice. Dyneema is also preferred over steel ropes when lifting large loads due to its increased lifting capacity and less danger in the event of a break. For climbers, strength and cut resistance are most important.

Source: usarope.net/why-buy-dyneema-rope