moikel 27th March 2011, 03:24 PM I have a solid brass flat bar that I bought from an engineering place that I want to polish.Its got a few scratchs & dings it was sitting around for while in machine shop.Its 3/8 inch thick x2.5 inch wide. Ive started using wet/dry,is there a better way:? I figure I will get to Brasso eventually. Its for the sawn end of a red cedar bar thats over in big stuff. I will need to put something on it to keep it shiny:?. Any suggestions most welcome:2tsup:
neksmerj 27th March 2011, 04:56 PM You won't be able to polish the scratches and dings out, you really need to remove material. Sounds like wet and dry is the go depending in the depth of the flaws.
If it's really bad, I would suggest you find an engineering shop that has a surface grinder.
If you look back through some of the recent posts, one of our members was just discussing his surface grinder. Give him a call.
Brasso will certainly be the last step.
Edit: Oops, the post re surface grinder, is over in the Hercus section.
Ken
Master Splinter 27th March 2011, 05:00 PM To keep it shiny, spray it with Wattyl Incralac, which you can find at just about any hardware store.
Single-phase 29th March 2011, 02:07 PM I have successfully used v.fine sandpaper with a Random Orbit Sander. White paper designed to stop paint clogging. Was used on old brass door strikers. Afterwards polished with Autosol, then hot detergent wash before coating with Incralac.
Clear coat sticks well if the metal is at body temp - not cold.
moikel 29th March 2011, 02:42 PM Thanks:2tsup: Currently working through grades of wet /dry. I wil then try your recommendation.Bar has never been polished before so I have a bit of work ahead of me. Body temp a bit probablely saved me some headaches:2tsup:
rusty steel 2nd April 2011, 09:07 PM As you have started using wet & dry it is probably too late to suggest draw filing with a mill file to remove the unevenness which is a result of the rolling process. This would have sped up the polishing process. The imperfections become more apparent once you start polishing, as I am sure you have noticed.
Russell
Dave J 2nd April 2011, 09:18 PM Good idea Russell.
I remember buying mill finish SS flat bar and having to polish it.:doh: Lucky I didn't have to much to do, but the it needed to flat and have nice sharp edges.
You could always take to the local chroming shop to have it polished, they will do a brilliant job on it and shouldn't cost to much. Something that will take you hours will take the 10 minutes.
Dave
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