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Constrictor Cord Material

DiveHacker

Active Member
Jun 17, 2020
118
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Bangkok
I had a wishbone come out of the band and I do not have much material and don't have many shops around me. I do have some 1.5mm dyneema. Would this work well as constrictor cord? I am gonna try it anyway but just thought I would post here in hopes to get some quick responses.
 
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Mr. X

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Yes, it happened to me once too, never again.Yes, good option. I am currently using 1.8mm spectra for my constrictor knots. Kevlar is good, no stretch. Best not to go too narrow.

I've tried all sorts. Braid works. But you have to be careful with cords that stretch they need to be tried extra tight.
 

DiveHacker

Active Member
Jun 17, 2020
118
68
33
47
Bangkok
Thanks. I did use it. I sorta liked working with it, although i suppose it would be expensive if you did a lot of bands. I may pick up some braided line.
 

Johny Depth

Active Member
Sep 27, 2020
108
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italy
Braided nylon 1.5 or 1mm.The Dynema used for fast repair 1mm tied in water to aviod friction.Other wise i use vasaline or bp jelly!also for wish bone in dynema i inject siringe with out needle in to latex hole aids insetion probability for dynama wish bone
 

Mr. X

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Jul 14, 2005
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Locked-down Britain
I bought 50m reel of 1.8mm Apnea Dyneema from https://SpearfishingStore.co.uk, they often have the best prices, and I bought it during one of their 30% off sales, as part of a bigger order (so no extra shipping). If I don't use it as reel line (I have a 100m of thicker, brighter, cheaper polypropylene para cord for that), it should last a while.

I think it had already sold out before the final 40% off sale. The webstore is now under new management. They are starting to ramp up gradually, with covid and all. It will be Interesting to see how they will run things. They seem pleasant and helpful.
 

DivingNomad

Active Member
Sep 21, 2015
197
89
43
USA
I bought 50m reel of 1.8mm Apnea Dyneema from https://SpearfishingStore.co.uk, they often have the best prices, and I bought it during one of their 30% off sales, as part of a bigger order (so no extra shipping). If I don't use it as reel line (I have a 100m of thicker, brighter, cheaper polypropylene para cord for that), it should last a while.

I think it had already sold out before the final 40% off sale. The webstore is now under new management. They are starting to ramp up gradually, with covid and all. It will be Interesting to see how they will run things. They seem pleasant and helpful.

It seems a young guy is the new owner. I wish them all the success. It is terrible times to be involved in small leisure business now.
 
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musubi

Member
Feb 9, 2017
11
8
18
37
Hawaii
I've used waxed line for years and it's worked very well for me. Easier to cinch down. I double up the line and tie the constrictor knot.

I tried thin constrictor cord and had my wishbones pull out before. Probably my fault for not making it tighter.
I fear braided line is going to be too thin and may actually cut into the rubber.
 

musubi

Member
Feb 9, 2017
11
8
18
37
Hawaii
The waxed line is my preferred material, but I do see some of my partners and store bought bands tied with cord. No matter which you use, make sure to tie it tight. I loop the tying ends around solid objects and pull with all my might.
 
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Mr. X

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Jul 14, 2005
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Locked-down Britain
Braided nylon 1.5 or 1mm.The Dynema used for fast repair 1mm tied in water to aviod friction.Other wise i use vasaline or bp jelly!also for wish bone in dynema i inject siringe with out needle in to latex hole aids insetion probability for dynama wish bone
It probably doesn't make much difference but I avoid using petroleum products like Vaseline, WD40 and 3 in 1 oil on rubber, plastic - including nylon/perylon - or silicone, almost all dive related equipment in fact. (Interestingly though neoprene is thought to be relatively resistant to oil and is used for sealing washers in oil systems.)

Instead, for dive equipment, I tend to use silicone spray, glycerol/glycerine, soapy water or talc (silicone grease or silicone gel or KY jelly would likely be fine too). For making bands, I use soapy water, in a pinch I would use saliva, as the slipperiness soon disappears, which is what I want.
 
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