Abstract: A system for providing temporary durable protective coatings onto surfaces of building construction elements, and for controllably removing said temporary protective coatings from said surfaces. The system comprises coating compositions configured to provide pliable resilient yet durable temporary protective coverings on surfaces of building construction elements, stripping compositions configured to at least partially dissolve the temporary protective coverings, and methods for use of said coating compositions and said stripping compositions.

Abstract: A membrane for extracting hydrogen from gaseous and gaseous-liquid mixtures at low temperature makes use of a palladium or palladium alloy substrate and permits reduction of the surface resistance of the substrate. The membrane includes combined coatings including vacuum-deposited palladium ions driven into the substrate with inert gas ions and an electrochemically applied catalyst coating in the form of palladium or palladium/platinum black. A method for fabricating the membrane and a method for using the membrane to separate ultra-pure hydrogen are also disclosed.