A dip tank for holding liquid adhesive used for increasing the adhesion or bond between fabric and rubberized material used in the production of pneumatic tires. A rubber bag is secured adjacent the bottom of the tank and inflated and deflated to control the level of the liquid within the tank. A roller for directing the fabric into dipping relation with liquid in the tank, is disposed in fixed relation within the tank and journalled for rotation in a pair of bearings disposed in sealed relation outside the tank, such that the liquid cannot seep into the bearings and eventually wear them out or destroy them to hamper rotation of the roller.