I've done some "ageing" to metal parts at the shop, mostly for customers with vintage instruments where I installed new shiny hardware and didn't look good...
I use muriatic acid, be really careful with it.
I certainly do NOT advice you to use it on a pickup.
Muriatic acid vapours will ruin your lungs and eyes so use protection, also use it far from any metallic tools or machines, the vapours will rust them, I learnt that the hard way.
That may be the same product as Birchwood Casey Gun Bluing.
I have some in my shop, I will test it in a little while.
Touch-up gun bluing can be bought in any sporting Goods store.
Here in the states you can get it at Wally World.
Terry
"If Hitler invaded Hell, I would make at least a favourable reference of the Devil in the House of Commons." Winston Churchill
Terry
That may be the same product as Birchwood Casey Gun Bluing.
I have some in my shop, I will test it in a little while.
Touch-up gun bluing can be bought in any sporting Goods store.
Here in the states you can get it at Wally World.
Terry
I just tested the Birchwood casey Perma blue.
It works great. It will darken a rod magnet very easily.
It also works on the plated slug piece that I tested, but it took longer.
I ended up putting the slug in the bottle cap and let it soak several seconds.
If you get it too dark you can buff it or litely buff it with fine steel wool.
Terry
"If Hitler invaded Hell, I would make at least a favourable reference of the Devil in the House of Commons." Winston Churchill
Terry
You might check the MicroMark catalog. They have a number of "aging" chemicals used by model railroad fanatics to make HO railroad sets look authentic.
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