The Thermal Rock S Insulator have incredible thermal insulation. They can be used for ducts in variety of residential, commercial or industrial buildings. These material are designed by our skilled workers using approved quality material. The Thermal Rock S Insulator is capable of damping vibrations in duct. They are light weight, durable and retains its insulation properties in humid environment for very long time. They are tested by our quality controllers to ensure they are free from defects and can be availed from us at lower price.