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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.
Had the boom and mast in stock. Order processed quickly, great service and local so could pick them up. Friendly and helpful staff as always. Thank you
Ordered this item for an alternative use for my young boy who loves playing spiderman and wrapping/tying objects up with different coloured string/rope.
Arrived quickly and with a fab assortment of different ropes. Perfect for the purpose of my purchase.
Thank you.
Good back, like the two separate pockets for wet and dry gear, however i find the wet pocket zip does seem to get stuck and would like the back to have straps like a rucksack so you can carry it on your back, other than that extremely happy with the 90l as it gives me tonnes of space for all my sailing gear
Delivered on time after chatting by phone to a very helpful person at Sailing chandlery. Absolutely no complaint with this Company and will continue to use them for my sailing needs.
I needed replacement Q Locks (a great product). Arrived in under 48 hours from ordering
A chandlery was the only place I could think where to get this. It's actually the strengthen the post for our washing line the steel wire (hoops both ends fitting diagonally from top of clothes post to base of another post 2 meters away supporting trellis between. The length of steel wire will soon disappear in the foliage & should provide addition structural support for many years.
Service was excellent with the length being ready before the expected date.
Worn these for a few races now and they have been excellent. Really high performing. They are grippy and super supportive even without using the zhik toe straps. I’ve raved about them so much that my crew and colleagues at the club have now also bought the same ones
Ordered this when my son's training sail got rippd in action. Pleased to find it here 20% cheaper than anywhere else and as always delivered correctly and in great time. Thankyou
The bag is well made and large enough for halyards as well as other items. I have used the 3M fixings but these are not really adequate and so the bags will need to be screwed in place.
I would buy again.
Delivery was on time. The O rings fitted the hatches on my topper topaz. No issues excellent service
I ordered the hiking pads for my son who was very pleased with them. The order was delivered within a few days. I’ve ordered items before from sailing chandlery and have not been disappointed with the service I received. Thank you
Loads of space in this bag for all of my kit, extra pockets are very helpful and the compartment inside keeps my dry and wet kit apart. Would recommend.
Not actually for a Topper but for a sailing canoe I have built. Pleased with the quality, delivered promptly, just the job thank you!
I’m using this with the Clamcleat CL211 and they pair perfectly. Strong and with the stiffness that I was looking for. Really pleased with the purchase and excellent quick service.
These work fantastically. Used with 6mm rope they grip instantly. Easy to adjust in small amounts and lock in with no effort at all. I was concerned that when the pressure comes off that the rope would release, but this isn’t the case at all. Really pleased with the purchase and rapid delivery.
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