Hey chewi ! I just cleaned my Roman's FX MK1 Machined Kit again last week. I've been cleaning it every few months trying to keep it all shiny and new looking. I use Neverdull cotton wading to rub off the wee little signs of surface rust. The last few times I've coated it in WD-40, but the whole thing continues to tarnish regardless. This time I tried cleaning with Neverdull, wiped it down with paper towel, coated it in Meguiar's Ultimate Liquid Wax Pure Synthetic Polymer, let it sit in the garage for a couple of hours to soak it into the surface of the metal and let it dry, then came out with more paper towel to wipe off the wax and then used a microfiber rag to wipe off the paper towel fuzzies/lint.
So far so good! The brass parts have taken on a slightly duller appearance than the day I polished and waxed it, but they haven't changed color per se. The grenade, booster and emitter still look shiny and don't have any signs of tarnish recurring yet. Though I haven't picked it up since I polished it either, to be fair, so it hasn't had any sweaty fingerprints to deal with.
Good Luck keeping your MR Luke pretty!
