These may contain solvents such as toluene, isopropryl alcohol, ethyl and butyl acetates, acetone and other ketones.The most durable exterior house paints are based on acrylic co-polymers of materials like methyl methacrylate and butyl acrylate.These reformulated gasolines contain either corn-derived ethanol or natural-gas derivatives such as MTBE (methyl tertiary butyl ether).