The Metal Jacket series of fibres from Fiberguide Industries are coated with gold and aluminium for high strength ... is 9.65 μm ± 0.5 μm. The cladding and coating outside diameters are ...

Documents show the zinc cladding originally proposed was replaced with an aluminium type, which was less fire resistant, saving nearly £300,000. The cladding is thought to have contributed to the ...