In multi - layer coiling applications where there is more than one layer of rope on the drum it is essential to install the rope with some back tension. Bridon recommends an installation tension of between 2% and 10% of the minimum breaking force of the rope. If this is not achieved, or in certain applications where high pressure on underlying rope layers is inevitable e.g. a boom hoist rope raising a boom from the horizontal position, severe crushing damage can be caused to underlying layers.

Selection of a steel core as opposed to a fiber core will help this situation. Additional resistance to crushing is offered by a Constructex or Dyform rope resulting from its high steel fill-factor.

Applications where severe crushing is the mode of deterioration will benefit from the use of Constructex.