Putty Pads are acoustical pads designed to be applied to the external surfaces of metallic and nonmetallic electrical boxes. They are applied to the back surface of the box, as well as the three sides that are away from the stud, to combat sound bleed through the electrical box cutout in a wall.    The installation sequence for sound barrier Putty Pads is after the gypsum board is applied to one side and before it is closed in on the other side. Installing the pad on the side where the board is already installed is straight forward.   Installing it on the other side requires some technique. The pad must be applied to the box and then either lapped over the front of the tile plate (if one is used) or excess material must be worked toward the front of the box and built up into a compressible gasket much like the pinched area of a pie crust. This gasket compresses between the front edge of the box and the gyp sum board as the board is installed.

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