BIRCHWOOD CASEY - Aluminum Black® Metal Finish (PAB)

Used by gunsmiths to blacken aluminum parts. 
Restores scratched and marred areas quickly. Fast-acting liquid is easy-to-apply with no dimensional change. 
Color will vary from deep gray to black depending on alloy. 
ALUMINUM BLACK is also excellent for blackening name plates, plaques, trophies and other engraved items. 
Final appearance can be enhanced by applying wax/oil.