A bi-layer bond coating for use on metal alloy components exposed to hostile thermal and chemical environment, such as a gas turbine engine, and the method for applying such coatings. The ball is made of foam and when submerged in water the holes will fill with water. The seat pad extension and seat back are partially supported by the support structure of a row of seats ahead of the convertible seats when the convertible seats are converted to bunk beds. The first and second electrodes are disposed on the first substrate in the sub-pixels. The cross-sectional area of conductive connecting member is at least greater than the cross-sectional area of the first color signal storing device. The hub is configured to be held by a person performing the infiltration procedure.