All dust is abrasive (or at least as abrasive as a material of that hardness can be) when it's new and yet to be worn down by the environment. God knows how ma

All dust is abrasive (or at least as abrasive as a material of that hardness can be) when it's new and yet to be worn down by the environment. God knows how many machines are rolling around mines, foundries and scrap yards as you type this. Moon dust is only an issue insofar as the kinds of people who wind up doing aerospace engineering don't tend to have the kinds of work backgrounds that make one good at designing things for low margin industrial environments so they're apt to make rookie mistakes in that area. This isn't a hard problem. Every major rubber components manufacturer probably has some gray beard who can look at your dust under a microscope and then tell you exactly what you need to do for your application. The huge temp swings, now that's actually a real problem.