This means you can choose your ideal length and tie your own slings. Spools of nylon are readily available at most outdoor stores, and can even be ordered online. If you’re an ice climber or mountaineer, it’s also worth noting that nylon can absorb a lot more water, which means added weight and the tendency to freeze more quickly. The negatives of nylon are quick and simple to explain: it’s bulkier and heavier. To achieve the UIAA-required minimum strength of 22 kN, nylon is roughly double the width and weight of equivalently certified Dyneema. Although the test wasn’t the most scientific (samples were taken from many areas and did not incur exactly the same use), it did show that their is a wide variance of what “old” slings will hold before breaking, and nylon always seemed to come out on top. When Black Diamond’s Quality Control guru, Kolin “KP” Powick, tested a plethora of dogbones found at crags, he found that the nylon slings were the strongest. And, if you take a beginning mountaineering course, and everybody is using wide nylon, there’s often enough color options to tell your sling apart from others. You can color code each length of your nylon slings so it’s easy to see what’s on your rack. Nylon slings are also much less expensive at roughly half the cost of Dyneema. stretches a scant three to five percent. Rock and Ice reported, In a fall, nylon stretches up to 30 percent, thereby dynamically absorbing the energy of a plummeting climber. The most significant benefit of using nylon instead of Dyneema is that it stretches when weighted, reducing impact forces on you and your gear. It actually took quite awhile to become adopted into climbing practice and it wasn’t until the late 60’s and early 70’s that it became universally accepted ( thanks to Outdoor Gear Labs for the history).
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