Also keep the heat blocks nice and shiny, and fingers less burnt :). I thought being an insulator that it might provide some improvement. That's all. I haven't experienced any cooling issues just yet, but I'm sure that comes down to what and what size object you are printing. I'm glad I suppose, but know that issues are looming, but so are fixes. Pretty much same with any of the 3d printers. At least we have some nice core components.