Minwool Rock Fibres Limited offers Sectional Pipe Insulation for Firm Fit. Minwool Rock Fibres Limited manufactures Rock Wool or for Thermal Insulation [Hot and Cold] and Acoustic Insulation, Mineral Fibre Ceiling Tiles. The Sectional Pipe Insulation for Firm Fit consists of fine fibres spun from molten natural rock bonded with a thermosetting resin. The Sectional Pipe Insulation for Firm Fit is used both hot and cold piping to conserve energy, maintain, process temperatures, provide personal protection, prevent condensation and to reduce noise emission.