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November 24, 2020 3 min read
Dyneema rope has fast become the market leader for performance rope. Dyneema is an Ultra High Molecular Weight Polyethylene fibre that was developed in the Netherlands just over 20 years ago.
Dyneema is lightweight and is the World's strongest fibre. Being lightweight and strong are not the only characteristics, the dyneema fibre is also water and UV resistant.
Here at Sailing Chandlery we sell a huge amount of dyneema rope in various formats, whether that be a 12 strand dyneema rope, or a dyneema core rope with a harder wearing jacket. We stock a good selection to help you with everything from your trapeze lines through to yacht halyards.
If we have a think about where dyneema could be used on your boat there are initially two areas to review:
Think about your trapeze lines, can you replace the heavy wire with 2mm dyneema? A 2mm dyneema will come with around 450kgs of average breaking strain, plenty to hold you up above the water.
Your shrouds are the same, many pre-stretched dyneema ropes can act as shrouds too.
Also think about your shackles, probably metal and probably bouncing on and damaging your deck and boat in some areas. Our dyneema shackles are lightweight, easy to connect and certainly won't leave chunks out of your deck.
If you put a polyester rope under strain it's going to stretch. If you are using a 10mm braid on braid rope for your yacht halyard you will see around 3.7% stretch at 20% of the breakload. The average breakload would be 2,400kgs. If you change that for an 8mm dyneema core halyard rope the stretch would be 1% and you would increase the breakload to 3,570kgs with a thinner rope. Thinner rope means less friction while hoisting and retrieving your sail.
With dyneema being stronger is does mean you can work with thinner diameter ropes. Another popular thing to do is to taper halyards down to only the dyneema is showing along parts of the rope. This retains the strength you need but reduced friction where fast launches are needed.
Having less stretch in your rope will help to keep the sail where it should be keeping the sail shape leading to more speed through the water.
With just these two options you should have been able to help reduce the weight on your boat, along with the friction of your ropes as they go through the systems. We've also potentially improved your sail shape, or at least kept the sail where it should be in the gusts. This has made your boat lighter, easier to sail and hopefully faster.
We sell a variety of dyneema cord at Sailing Chandlery. Our most popular are the 3mm dyneema and 4mm dyneema ropes but we also supply dyneema from 2mm through to 12mm.
You will need to choose whether you need a 12 strand dyneema rope or a dyneema core rope with a harder wearing jacket.
Read more about our dyneema cord options.
If you have questions about any of our dyneema ropes then please do get in touch, our team are here to provide you with helpful advice.
Slides easily through the blocks whilst providing firm grip
Item has brilliant bounce back ability, thanks
Simple to fit and makes launching and recovery simple. Well worth the investment
Quality material and design enables my lug sail to be stowed securely on it's spars
Great wide and grippy tyres for a shingle/sharp launching area and compound for an RS400.
Receive fantastic service couldn’t help any more if they tried. Arranged for me to collect my order at a time that suited even when it was outside of working hours. Much appreciated, thank you sailing Chandlery.
Excellent gloves, perhaps the best I have used. The fingers are long enough to provide protection from sheets/halyards and fit nicely so that ropes cannot get between the glove and finger. If the winter gloves are any guide they should also be very durable.
really happy with these! the thick material means that I will be warm whilst sailing, and the 3 finger coverage allows mobility and warmth on the water. the added grip will really help on the heavy wind reaches, can't wait to test them out this weekend. shipping was really quick, with a sweet included in my order thank you.
As always, great stock, quick delivery, perfect, thank you
The footprint of these is much more than standard trolley wheels so they roll on sand much easier.
These Falker Burgees are essential for our training fleet, giving an instant indication of apparent wind direction.
Made of stainless steel they do not corrode, and are easy to fit into the mast bracket.
It is a shame the sail part is not available as a spare as this part does not last forever, unlike the ss frame.
Nice product.
Arrived quickly and fits very well
Fast, efficient service and the lightweight trolley is perfect for my needs.
We needed to change the size and it looks like they will change the Hikers for a size up. Thank you very much
Thank you Sailing Chandlery for delivering my new sailing watch.
An excellent product and decent value.
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