Providing and fixing of ‘ISO PREFAB 70 MM’ Size 1210x1210 mm made of 3 Honeycomb Composite Panel based of 1250 Kg/m (Up to 46.4 STC @ 4k as per IS:9901-III/ISO:140/ASTM90/413) with in fill of Acoustical Honeycomb and glued with acoustic sealants. Tested as per Fire Retardant IS 3614 (Part-II), BS: 476 (Part-20 & 22). 180 Minutes for excellent results and ISO PREFAB Joints Panel properly sealed with acoustic sealant to avoid any sound leakage.
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