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topic 6652

Luger rust blue


I would like to know what is the Luger "rust blue", tecniques, methods and chemicals.


Jorge Luis Coppola
- Buenos Aires- Argentina


Rust blue is a process of applying a soultion to clean gun metal and then allowing it to rust. The rust is rubbed off with 0000 steel wool [linked by editor to product info at Rockler] leaving a light blue color this is repeated until a good color is achieved. Any where form 4 to 10 times it is a long process but the most durable and attractive finish possible. The chemical used can be purchased commercially or made up from different formulas. The early gunsmiths used nitric acid and hydrochloric acid mix and then dissolved iron filings in it. This was brushed on then allowed to rust. I'm not sure of the percentages of acid.

Mark Dula
- Stony Point, North Carolina


Will be using the method explained in letter 4469 to Re Blue a T bolt .22 Browning, I own as Well as A Mirouku/Browning BLR in 22.250

Luke Speer
Commercial Painting Contractor and Shooter - Safety Beach , NSW, OZ

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