Kaiflex® ST s2 insulation material made of closed-cell rubber emits limited smoke to s2 standards and is self-extinguishing as well as non-dripping. It can be used for cold and hot pipes and on different pipe diameters – both in small boiler rooms and in large-scale projects. It has very low thermal conductivity and effectively acts as a vapour barrier and reliably prevents condensation, greatly minimising the risk of corrosion underneath the insulation.