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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8mm polypropylene black 10 years old poorly stored rope — Breaking Strength Test
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1.5 mm Dyneema SK78 with Light Coating Rope — Breaking Strength Test
Editor: Otto Tromm | Test date: 15-4-2026 Dyneema 1.5 mm rope with coating: breaking strength tested Small rope diameters are often underestimated. A 1.5 mm rope sounds fragile, but when...
Otto Tromm |
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2mm Dyneema with Gold Coating Rope — Breaking Strength Test
Editor: Otto Tromm | Test date: 14-4-2026 Dyneema is known as the strongest rope fibre per unit of weight in the world — but what happens when that fibre is...
Otto Tromm |
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1.5 mm SK78 Dyneema Cord Without Coating — Breaking Strength Test
Editor: Otto Tromm | Test date: 13-4-2026 A cord with a 1.5 mm diameter sounds fragile. Barely thicker than a shoelace, thinner than a pencil tip. But what if a...
Otto Tromm |
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1.5 mm Kevlar with Polyester Sheath Cord — Breaking Strength Test
Editor: Otto Tromm | Test date: 11-4-2026 A Kevlar cord of 1.5 mm is thin — thinner than a pencil tip. What this cord does under a tensile test, and...
Otto Tromm |
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3 mm Kevlar with Neon Yellow Polyester Sheath Rope — Breaking Strength Test
Introduction Kevlar is recognised as one of the strongest fibres used in rope construction. But what happens when the core construction is the deciding factor between strong and surprisingly weak...
Otto Tromm |
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8 mm Cotton Cord Without Core — Breaking Strength Test
Editor: Otto Tromm | Test date: 10-4-2026 Introduction Cotton has a long history as a rope material. It is soft to the touch, has a neat appearance, and is widely...
Otto Tromm |
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5mm Polyester 24-Strand Rope — Breaking Strength Test
Introduction 5 mm polyester rope is one of the most widely used ropes on the market — but how strong is it in practice? The 24-strand braided construction with core...
Otto Tromm |
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3mm Coloured Cord — Breaking Strength Test
A coloured cord of 3 mm may seem unremarkable — light, flexible, easy to handle. But what happens when it is actually loaded to break point? The combination of material,...
Otto Tromm |
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6mm Coloured Cord — Breaking Strength Test
6mm coloured cord tells a different story than expected. Compared to the hollow braided cord of the same diameter, this rope behaved noticeably differently at break — both in sound...
Otto Tromm |
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8 mm Coloured Cord — Breaking Strength Test
8 mm coloured cord may seem unremarkable. But what this rope does on the universal testing machine differs noticeably from what the material would lead you to expect — and...
Otto Tromm |
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8mm Spleitex Rope — Breaking Strength Test
Spleitex is a rope that at first glance appears technically unremarkable: a plain 8 mm twisted cord. What makes it distinctive is its appearance. At first sight, it is virtually...
Otto Tromm |
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6 mm polypropylene twisted rope — Breaking Strength Test
Polypropylene is generally considered the most modest member of the synthetic fibre family: lightweight, low-cost, and typically not the first choice when strength is the primary requirement. But what if...
Otto Tromm |
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10 mm Coloured Cord — Breaking Strength Test
Introduction A 10 mm coloured cord in a sheath-core construction with three twisted cores — visually a solid piece of rope. The polypropylene multifilament (PPMF) construction, the colourful appearance and...
Otto Tromm |
