From Rust to Lust, can I bring it back? #7: Polishing Cast Iron beds?

You might want to look at the Sandflex blocks. Amazon sells them but there are places (Klingspoor) with better pricing. There are videos out there and these appear to do a great job at restoring cast iron beds.

-- Dave, Colonie, NY

Give this a try. I have used Bosch Abrasive Mesh Discs for surface conditioning applications on my Bosch 6” random orbit sander/ polisher with Mineral Spirits for a lubricant in well ventilated area. The pads look like 3M Scotch pads on steroids with hook and loop on one side. The cast iron beds polish up like new. I have used the pads on, band saw tables , table saw, scroll saw tables etc. Just keep going over and over wiping off the rust between coats of mineral Spirits.