Aqua fortis

[wayne1967]

Morning. After posting that pic of my old build I noticed the stock seems darker now then back then. Is aqua fortis known to darken over time? Thanks

 

[rich pierce]

If you mean iron-saturated nitric acid solution, yes, especially if not washed after blushing with heat. Ferric nitrate solution - I dunno.

 

[RobertIN]

Not sure about aqua fortis but depending on how you finished it that may be what's darkening. Linseed oil and similar go dark over time.

 

[James Kibler]

With a proper solution, I've not noticed much darkening over time.

 

[wiscoaster]

I haven't noticed any darkening of my aqua fortis finished Colonial:

https://www.muzzleloadingforum.com/...l-58-caliber-smoothbore-maximum-bling.181896/

 

[waksupi]

When exposed to light, all woods darken with time, regardless if they have been stained or not.

 

[Polecat_Tom]

When exposed to light, all woods darken with time, regardless if they have been stained or not.

You may find that walnut will bleach out if exposed to sunlight if the finish doesn't have any UV prohibitors.