... / T9978Water tightness to ASTM C1185No droplets observed behind the panel,Test 24 hours at 250mm water headPartition stiffness – heavy ... G)No collapse or damageHeavy weight anchorage (high level wall cupboard) eccentric downward(BS5234: Part2: 1992, Annex K)No ... * light weight,waterproof,soundproof,heat insulation eps sandwich panel 2013* light weight,waterproof,soundproof,heat insulation eps sandwich ...