Fire putty pads offer a simple, moldable solution to seal electrical boxes and wall openings against smoke, flames, and noise. One effective method to enhance the fire resistance of electrical boxes is through the use of putty pads. This practice is a fundamental part of maintaining a structure's envelope. It prevents the uncontrolled movement of air, moisture, and. Other recessed boxes installed in fire rated walls can include washing machine connections, dryer exhaust recesses, ice maker connections, and medical gas connection boxes.