View single post by Salada
 Posted: Mon Oct 30th, 2017 08:06 pm
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Salada



Joined: Mon Nov 4th, 2013
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Michael M wrote:


Getting a bit off track here, but has anyone considered an accelerated way of naturally weathering strip wood?  Something short of leaving it out in the rain and sunshine for a few years?


Yes, I have.

1)  A strong solution of Ferrous Sulphate + water for a few days works well but you MUST rinse thoroughly after immersion to remove the acid and this can wash a little of the colour off. Not recommended for contact with steel rails but I'm probably one of the few who like tracklaying in Real Steel (TM).

 2) A very strong solution of Sodium Bicarbonate + water develops a good 'high desert' reddish-brown but this largely vanishes once the wood is rinsed and then fades to a disappointing pale creamy-blonde-off white after a year so of using in a model. Not recommended.

3) A combination of 1) above followed by a quick boil in diluted bleach solution develops a good 'high desert' silvery grey sheen to timber ties (see photo below if I can find it). If treatment is too prolonged the timber is seriously weakened and can become unsuitable if using for real functional ties.

4) Immersion in a mix of Acetic Acid (strong vinegar) + fine steel wool gives a similar effect to 3) above but I haven't yet experimented with this much.

5) Stain (preferably solvent based) to approx shade required, dry, then quick boil in dilute bleach to shade required. Prolonged boiling will seriously weaken the timber.

 Results of treatment 4) :  (roughly similar also to 3) above)




 I offer NO guarantees as to the health & safety, environmental, global warming, carcinogenic etc. etc. or "anything known to the State of California" re the above treatments.

One of the critical factors is the nature of the wood itself. Avoid any 'oily' wood such as pine, walnut or mahogany.


Formulas & methods courtesy of Salada Wagon Works.
 
Photo by Salada. Regards,       Michael

Last edited on Mon Oct 30th, 2017 08:28 pm by Salada

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