is this safe? (speargun dyneema)

[SageOf6Paths]

Hey people, excuse my ignorance please. I've been spearing/freediving for around a year but with no experienced guidance or supervision, just YouTube videos, forums and trial and error. The dyneema is looking a bit suspect so I've been avoiding spearing lately, can someone please give me some advise regarding this? What causes it, how long is a normal timeframe for this to happen, is this dangerous, how can it be fixed or avoided, what costs would I be looking at to fix it, how to fix it, answers to any of those questions would be greatly appreciated, thank you.

 

[Hobelf]

In climbing rule of the thumb is "When in doubt, dont use it or do it."

If your dyneema seems worn, U should change it or else U may lose your harppoon.

 

[foxfish]

Do you mean the running line attached to the spear or the wishbone line that ia attached to te rubber?
Either way it is very cheap and should be replaced at the first sighn of wear.

 

[SageOf6Paths]

The wishbone

 

[myfish]

The wishbone

Wishbones wear. The end.

However::

Dyneema/spectra wishbones are easy to change but, check first that the whole band is OK.

I'm assuming we are discussing circle bands ?

In which case, learn how to tie loops of dyneema into a band and then, you have the option of JUST changing the worn part without having to disassemble the whole band. Try to choose 'rougher' grippier, dyneema if you choose this latter option which I totally recommend as it allows for tuning and wishbone length adjustment.

 

[SageOf6Paths]

Okay thank you very much and any idea where I could buy some?

 

[foxfish]

Where do you live?

 

[SageOf6Paths]

Tasmania, Australia

 

[foxfish]

Well most boat chandler sell Dyneema, it is used for all sorts of rigging applications.

 

[SageOf6Paths]

Sweet thank you

 

[MAKO Spearguns]

 

[Mr. X]

Spearitco.com in the USA sell speargun rubbers & wishbone materials at sensible prices from their own website & on ebay (at slightly different prices). Beware, in UK, the customs limit (for outside of EU) was dropped (rather than increased) from £18 to £15 under the current Chancellor and that the Post Office will add a significant charge (£12 if I recall correctly) if they have to collect it. Big rip off