D-Rider wrote:So, Rich, if any of the rest of us had aluminium things we wanted to make nice and shiny, how would we go about it?
I see there is much potential to mess things up, to add bumps and dips into flat surfaces and may other pitfalls.
An idiots guide would be really helpful (for this idiot, at least)
..... and yes, I do have something in mind to work on .....
To be honest Andy, its almost impossible to offer an idiots guide. The basics are very simple but the results are determined upon experience and effort.
Essentially you need a reasonably powerful elecric motor (A std grinding wheel set up is just not man enough) mounted on a table or workbench with a spigot attached to the drive shaft.
Then by using various mops and soap compounds you effectively remove metal from the item being polished. Gradually by using softer mops and finer soaps you achieve the mirror polished appreance.
I normally use 4-5 different mops along with 3 compounds of soap (Grey or Brown then Green and finally Blue) to initially "cut" the metal and then increase the level of polish step by step. Finally a "clean" polish with a super soft mop and a final clean with Vienna lime to remove any remaining polish
In between all that is maintaining the mops as they become clogged with metal & soap, being very very careful as to how you hold the item being polished, they often get ripped out of your hands by the mop (especially the softer mops) The polished item also gets very very hot as the polishing effect relies upon the soap being melted and this is achieved by applying pressure to the item being polished against the spinning mop.
Even when using welding gauntlets and latex inner gloves I have numerous burns on my fingers and palms as a result of the heat...........Also you will get dirty and I mean very very dirty. You will be absolutely covered in burnt soap & metal remains means and it takes about 2-3 showers just to get clean and even then I look like I have been down the pit with my eye liner look (nice......not!)
So in conclusion, unless you want to do a number of items it probably isn't worth the outlay for the equipment. 3 of us initially started with our little set up. If anyone wants any small(ish) items doing let me know, I can do them but I'd like to stress I'm not a business nor touting for work, so it'll be done on a weekend etc.. The swinging arm took 8hrs to get to this stage, smaller items can be done in just a few hours though
To be fair Andy, where you live in the Midlands its "metal bashing central" there are dozens and dozens of small engineering shops which will do alloy polishing for you. (you can also polish stainless stell as well using the same technique, and no rust of course.
Hope this helps (doubt it)
F9
