webbing for safety lines

[portvasgo]

Just a quick question. I want to replace the safety lines running along our deck. The webbing has been there sometime and I am worried that they will not be as strong as they should due to ware, UV etc. On Ebay there seems to a very good price for 50m of the stuff. It is 25mm wide and the manufactures state that it has a breaking strain of 200kg. Does this sound strong enough for the purpose I intend!?
Look forward to receivng the usual wise advice.

 

[bedouin]

Are you sure that is not a typo? safety lines, harnesses an so on should have a breaking strain of 2000kg (2 tonnes!)

I don't think I would fit webbing in that application that the manufacturer didn't certify for the job - UV resistance could also be an issue.

 

[sarabande]

200kg is NOT enough. The shock loading of an average crewperson (say 80kg) falling overboard from 2 m will exceed that considerably.

The parasitic drag of a body in the water is a function speed and form shape. It's one of those formulae which says that drag is quadrupled if the speed is doubled. It is not difficult to imaging a human body exerting a pull over well in excess of 200kg.

Jackstay/safety webbing breaking strain is quoted on several sites at between 1800 and 2500 kgs.


Check with Jimmy Green for details.

 

[Adamastor]

Have a look at my comments here. I used some webbing stays for a long time, and they worked A-okay. The trick is to put some spectra lines inside the flat-tube webbing. That way, the webbing is under no duress. Just my 2d worth.

 

[tobble]

If it's a very good price it's probably not right for the job. If you look at the propper stuff it's quite different to the sort of stuff you get on backpacks etc, much finer weave and something a bit complicated at the edges. If it's a bit of basic safety gear I'd be inclined to place specification over price.

A guy I know had his made by the local hot air baloon place, they use similar bits of kit in case you fall out of the basket I assume. apparently rated at 3 tonnes and less money than getting someone with 'marine' in thier name to do it. I made my own, ordered appropriate length of propper webbing from jimy green I think and copied the stitching pattern from a life line.

 

[Aeolus]

You must make sure you buy polyester webbing. Much of the webbing on e-bay is polypropylene and totally unsuited to the purpose.

 

[Ruffles]

See "3 Tonne Jackstay Polyester Webbing" a little way down this page.

 

[FullCircle]

I bought that webbing for reinforcing our shopping bags and the infateable bag.

In absolutely no way should you use it for jackstays.


Please buy the best quality, and ensure you use the correct sewing pattern for the end loops. Dont forget the yarn for sewing it up with
Better still, buy from a supplier like (but not limited to) Jimmy Green marine, as the sewing machine required is industrial quality.

 

[Sanderling_]

Yep, really happy with Jimmy Green, ordered online monday evening,made and posted Tuesday, delivered this morning (Wednesday) cannot get better than that. /forums/images/graemlins/smile.gif /forums/images/graemlins/smile.gif

 

[PetiteFleur]

You MUST get Polyester webbing - 2000kg MINIMUM breaking strain. To get a longer life, I fitted snapshackles at each end and at the end of a trip I remove them and stow down below - UV is the killer of webbing after a few years. Don't trust ebay webbing unless they can certify it is polyester of the correct grade. Both Pointnorth and Kayospruce can supply the correct grade. And use bonded polyester thread for the sewing.