Ocean Polyester

[Jamie]

Simple question.

 

Is Ocean Polyester a class 1 or class 2?

 

where is good to get the 6mm stuff?

 

Jamie

[mattplace]

Ocean Polyester is class 1 but AFAIK it only comes in 8mm and 10mm.

 

Ocean Vectran is 6mm but is core dependent so is class 2 (As i have just found out in another thread i started.)

[Dak]

6mm OV has exactly same cover construction/materials as OP but as matt said, its core dependant.

 

OP-class1

OV(6mm stuff)-class2

 

Simples

[Old Mill Tree Care]

Core dependent. What does that mean?

[WeeDee]

Core dependent. What does that mean?

 

The rope has a jacket on the outside and then a core on the inside.

The strength of the rope depends on the core strands i.e. core dependent.

Other types of rope use the jacket and the core to provide the rope's strength.

[mattplace]

Core dependent. What does that mean?

 

It means the core of the rope is the primary strength, and the outer cover is secondary.

[stuartc44]

6mm OV has exactly same cover construction/materials as OP but as matt said, its core dependant.

 

OP-class1

OV(6mm stuff)-class2

 

Simples

 

How can it be made of the same construction/materials but be a different class?

 

And some ropes, Yale xtc plus for example, just the jacket provides its strength.

Edited December 18, 2011 by stuartc44

[stuartc44]

The rope has a jacket on the outside and then a core on the inside.

The strength of the rope depends on the core strands i.e. core dependent.

Other types of rope use the jacket and the core to provide the rope's strength.

 

And some, Yale xtc plus for example, the jacket provides the strength.

[WeeDee]

How can it be made of the same construction/materials but be a different class?

 

And some ropes, Yale xtc plus for example, just the jacket provides its strength.

 

OP has a polyester core, OV has an Aramid core. Both have the same jacket.

 

Aramid is described as a 'liquid-crystal polymer'.

 

Dak also stated the two had the same cover materials/construction - he said nothing of the core materials.

Edited December 18, 2011 by WeeDee

[DrewB]

Op polyester core. Ov vectran core. Both have the same jacket of aramid and polyester. Class 2 is for hmpe cords- tecnora, vectran etc.. As they are very slippery and so the chinese finger trap of a class 1 splice may not hold.

16 strands ropes are completely different in that the core is just used as a filler keeping the rope round under load- in the splice it does nothing hence the bet long bury of the splice. Kernmantle ropes generally have the strength in the core with the cover acting as a protective layer but also adding some strength. Some rope companies also call 16 strand ropes a kernmantle due to the core not being braided. Nice n simple:)