The surliure, one of the basic techniques to take care of your ropes

One of the basics of seamanship! © O. Chauvin

To prevent a rope from unraveling or fraying, there's nothing like overbinding it. Especially when it does not weld or badly as in the case of natural or mixed fibers. The overbinding is one of the fundamentals of seamanship, simple and quick to do!

An overbinding can be made on any rope, whether it is stranded, braided or composite. There are several forms, sometimes sewn, that can be adopted depending on the type of rope and its use.

A basic material

The necessary material is limited to a good knife and some sail wire or fine garcette. The one we use is waxed. A lighter will allow to weld the ends of the wire at the end of the work.

Un outillage des plus simples
A very simple tooling

Place the braid

Form a loop of sufficient size with the end of the sail line and place it on the rope. Hold it in place between your thumb and forefinger while you position the first turns...

On forme une ganse
We form a braid

Jointed coils

Wrap the sail line in tight turns around the braid. Throughout your work, keep the thread taut. The strength of your surliure depends on this tension and the good stop of the ends of the thread which will be stuck under the turns at the end of the work.

Les spires recouvrent la ganse
The coils cover the braid

Which size of overbinding?

There is no specific rule for the length of the overbraid. When it is simply a matter of preserving the end of a rope from fraying, a length equivalent to the diameter of the rope is sufficient.

La longueur dépend du cordage
The length depends on the rope

Keeping the tension

Once you have made the desired number of turns, cut the end of the sail line and insert the free strand into the loop of the braid. In order not to lose the benefit of your efforts, keep the coils taut between your fingers.

Le brin glisse dans la ganse
The strand slips into the braid

An invisible stop

Pull on the loose end to close the braid and trap the end of the last turn. Holding one end of the thread in each hand, pull enough to bury this connection under the coils without going too far so that the connection does not come out the other side, ruining your efforts.

En refermant la ganse, on emprisonne l'extrémité sous les spires
By closing the strap, the end is trapped under the coils

Long-lasting protection

Cut off the excess thread and briefly heat the ends with a lighter. This will keep your lines from fraying for a long time. This system does not form a thick layer that could interfere with the passage through a pulley.

Solide et sans sur-épaisseur
Solid and without overthickness
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