Dyneema Announces SK80: Benefits, Applications and Explanation by Prorope
Dyneema unveils SK80 fibre at SMM 2026. Learn what fatigue means for rope and what our own SK78 breaking strength tests show for manure scraper ropes.
Otto Tromm |
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Dyneema Announces SK80: Benefits, Applications and Explanation by Prorope
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8 mm Nylon — Breaking Strength Test with a figure-eight knot
Break testKnot testFigure-eight knot8mm FIGURE-EIGHT KNOT IN 8 MM NYLON: 33% strength loss The figure-eight knot has a reputation as a safe knot — but measured in 8 mm nylon,...
Otto Tromm |
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3 mm HMPE with Black Sheath — Breaking Strength Test
Breaking testHMPE3mm BREAKING STRENGTH 3 MM HMPE WITH SHEATH: 4.03 kN — but with a significant asterisk Five tensile strength tests on 3 mm HMPE rope with black polyester sheath....
Otto Tromm |
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5mm HMPE Blue / Gold Cord - Breaking Strength Test with a bowline
Breaking testKnot testBowline5mm BOWLINE IN HMPE: STRENGTH 60% retained — but the lowest measurement tells you more A bowline costs this 5 mm HMPE rope an average of 40% of...
Otto Tromm |
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The Best Cord for Patio Awnings - Breaking Strength Test
Break TestSun ScreenHMPE / Dyneema BREAKING STRENGTH AWNING CORD 3MM 5.16 kN — 142% stronger than generic HMPE Two widely used awning cords for patio overheads, each tested five times...
Otto Tromm |
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3 mm HMPE with Polyester Sheath and Blue Marker Thread — Breaking Strength Test
Breaking TestHMPE3mm HMPE 3 MM WITH SHEATH: 2.13 kN — weaker than expected An HMPE core with a polyester sheath sounds like a strong combination. The test results tell a...
Otto Tromm |
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8 mm Sisal — Breaking Strength Test
Breaking TestSisal8mm BREAKING STRENGTH 8 MM SISAL ROPE 4.17 kN — well below average Sisal looks strong. The test results tell a different story. Five tensile tests, one conclusion: this...
Otto Tromm |
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8 mm Sheet Line — Breaking Strength Test
Breaking TestPolypropylene8mm BREAKING STRENGTH 8 MM SHEET LINE 7.42 kN measured Polypropylene, sheath-core construction. Five measurements, remarkably consistent results. Here are the figures. 7.42 kN Average breaking strength 757.0 kg...
Otto Tromm |
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8 mm Nylon Black with Core — Breaking Strength Test
Break TestNylon8mm BREAKING STRENGTH 8 MM NYLON WITH CORE 12.57 kN — strongest 8 mm in the test A nylon rope with a braided sheath and a twisted core: two...
Otto Tromm |
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8mm polypropylene black 10 years old poorly stored rope — Breaking Strength Test
Editor: Otto Tromm | Test date: 4 Jun Old rope gets thrown away — that is the assumption. But what if a length of polypropylene rope that is 10 years...
Otto Tromm |
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4 mm Polypropylene Orange Rope 7.5 Years Old – Breaking Strength Test
Editor: Otto Tromm | Test date: 3 Jun Introduction What happens when a low-cost polypropylene rope that has been stored at the back of a warehouse for years is put...
Otto Tromm |
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Custom HMPE winch rope — 199 m with stainless steel thimble for cable pulling
Editor: Otto Tromm | Publication date: 2026-05-28 When pulling cables through narrow and often curved conduits, cable pulling teams must work in sync — applying high, controlled force throughout. Any...
Otto Tromm |
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HMPE endurance test - update - notable coating result after 4 weeks - Breaking Strength Test
On exactly 5 May, the endurance test that is set to run for 5 years was started. That said — after 4 weeks, it was impossible not to go and...
Otto Tromm |
