Just use a buffing wheel. It'll whip the anodizing off ok.
I need to remove black anodizing from aluminium so i can polish it , is there any way i can strip it .
thanks
Just use a buffing wheel. It'll whip the anodizing off ok.
Caustic soda. Abrading it a bit first might help, as decent caustic is hard to buy you could try oven cleaner.
When the finish is off go through a couple of grades of emery paper used wet before going to the buffing wheels.
Quite straightforward as long as it's a part you can fully remove.
Take care with caustic, do it outside, long sleeves, mask and proper googles not just specs and a readily available source of water in case you do "get it on ya".
If its the soft Type 2 then as LTFK suggests a brass wire wheel, emery etc will easily remove it.
Last edited by bighit; 25-05-2019 at 10:51 AM.
Caustic soda makes the ano just wash off. UNFORTUNATELY (!) it has no effect on the aluminium! I tried! Even if left for many long hours. The shiny bits remain shiny and the matte, matte, so any scratches or previously polished parts of the item will still be glaringly obvious and the whole will need polishing for a consistent finish, if applicable.
**WANTED**: WEBLEY PATRIOT MUZZLE END; Any Diana/Original mod.50 parts, especially OPEN SIGHTS
I seem to remember heating it with a blow torch removes all traces of anodised finishes - not sure though, anybody else able to confirm??
If it moves.....shoot it!..If it don't move.....shoot it in case it tries to!!!
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ive polished a few guns/scopes up over the years,1200/1500 grade wet/dry paper followed by buffing sissal/tight leaf mop using correct cutting compounds/waxes.
caustic soda will corrode/eat alloy(used it for eatching bare alloy before painting) depending on the mixture BUT it has to get past the anodizing first
i can also confirm the heat will remove some anidizing to a point as had 11 guns destroyed in a fire a few years back mind you i still had to sand/cut past the hardening before they would buff.
Drain cleaner works very well. 50% (sodium hydroxyde) drain cleaner to water.( diluting slows the process so you can catch it at the right time) Add the drain cleaner to the water not the other way round in a plastic tub. Put your anodised bits in. Keep agitating it as it looks like its not removing the anodising. Roughly 2 -5 mins later itll be a mat silver. Take out and neutralise in water. Polish or brushed finish looks good but thats a personal preference. Gloves and goggle are a very good idea just incase !
Atb Shaun
take care with caustic it will dissolve ally but it is the way to remove anodising as it dissolves the outer hardened layer allowing the dye to wash out of the anodised layer
to strip I use 200g of caustic pearls /liter and heat mix to about 40-50 degrees
mixing caustic with water will cause the solution to heat up I use a tooth brush to scrubb the part in the solution but if suspended in it it will also come clean
fit stainless grub screws to any threads as it will eat metal away so threads will be a looser fit