"We used to use a polyester baking enamel for metal office furniture components. This coating had good resistance to 20 rubs with lacquer thinner and MEK [methyl ethyl ketone]. We find that the powder coat we are using doesn’t have similar chemical resistance, and I suspect that most common powders would fall short of baking enamel in this area. What types of powders would give similar chemical performance to the baking enamel, and why aren’t they more commonly used?"