Gypmax Ceiling Tiles are also highly water resistant and maintain their strength under conditions that other boards would not be able to withstand. When Gypmax Ceiling Tiles are immersed in water for 24 hours they might slightly loose their strength but they regain their full strength as soon as they are dried. Placing the boards in water has no long term effect on the board or on most of the decorated surfaces, hence they can be used in high humid areas or in places where there is a risk of water accidentally coming in contact with the board.