Abstract: A tube assembly (202) for installation of one or more optical fibres is disclosed. The assembly comprises a plurality of elongate flexible first tubes (204) for receiving one or more optical fibres. A first layer (206) is arranged outwardly of the tubes, and a second layer (220) is arranged radially inwardly of the first layer to substantially fill a void between at least the radially outermost first tubes and the first layer.

Abstract: A fibre optic cable includes a core of primary coated optical fibres embedded in an inner layer of acrylate material, having sufficient tensile strength when cured to lock at least the outermost fibres in place and still allow the fibres to be easily broken out of the assembly for termination and splicing purposes. The hardness of the acrylate layer is such that at least the outermost fibres of the bundle are restricted from moving axially relative to the inner layer. The inner layer is then surrounded by a loose thin jacket formed from a mixture of high density polyethylene having a Shore hardness greater than or equal to 60 and a generally uniformly distributed slip agent, including a polyether modified poly (dimethylsiloxane) material such as polyether modified hydroxy functional poly (dimethylsiloxane) material. The mixture from which the outer layer is formed is compacted by means of heat and pressure.