Armaflex is a flexible, closed cell, elastomeric, nitrile rubber professional insulation system engineered to prevent condensation and effectively prevents energy loss. Armaflex offers a built-in anti-microbial protection that reduces mould and bacteria growth and also has a built in vapour barrier to prevent condensation. Properties Length: 2m.Pipe size: 19mm.Wall thickness: 60mm.Lengths per pack: 12x lengths.Pack coverage: 24m.Thermal conductivity:0.034 W/mK at 0°C.0.036 W/mK at 20°C.0.038 W/mK at 40°C.Surface spread of flames: Class 0.Fire performance: Class 1.Material: foamed nitrile rubber.Noise reduction: sound absorption coefficient ISO 354:2003.