With treating waterproof agent during process rock wool, this kind of rock wool can float on the water when facing water. So the material can be used as sounds absorption and heat insulation in special waterproof environment.
Density: 50kg/m3 ~ 200kg/m3
Thickness: 30 ~ 200mm
Width: 0.5m ~ 0.63m
Length: 0.5m ~ 5m
Waterproof rock wool
