PROLINE G2 0-mm Solid Bases are used to close the bottom opening on an enclosure frame. Casters or levelers can be used to attach the solid base, in place of the included hardware. Seamless polyurethane gasket (UL component recognized) provides a water-tight, dust-tight seal against moisture and contaminants. 16-gauge (1.5 mm) steel. Includes four M12 hex bolts for installation. Plated to provide corrosion resistance while maintaining a metalto-metal contact with the metal fiber gasket. Metalized, non-woven fabric EMI/RFI material covering UL94HP rated urethane foam gasket. Plating exposed in interior and paint over plated exterior. Polyester powder paint; RAL 7035 textured light gray standard.