The open type lifeboat is
manufactured with compliance with the (amendments to the SALAS,
***4). The hull of lifeboat is made of the fire reinforced plastic.
The space between the inside and outside hull is filled with
polyurethane foam which will supply sufficient buoyancy for the
boat. The boat will be afloat with the help of the foam even the
part of boat underneath the water damaged. This type of boat is
used for the life-saving on the sea.