Synthetic Membranes(PVC,TPO,SBR and HDPE membranes): Synthetic Membranes are widely used all over the world to prevent the leakage, seepage of water and act as a fluid barrier. Synthetic membranes have high mechanical properties and work-ability. These membranes can be loosely laid or fully bonded depending upon the requirements. These membrane can be laid under the concrete and also over the roof without any protection layer. Synthetic membranes have high resistance to permanent water pressure, good flexibility at low temperatures, explosion resistant, resistant to aging and fire resistant. These membrane are suitable for contact with both alkaline & acidic water.