I am sure that quite a lot of us are familiar with Renaissance wax. But for those who aren't, this product is reportedly used by museums to protect a whole host of valuable items including firearms, it is a microcrystalline wax which when applied and buffed, leaves a hard colourless coating that seals out moisture and oxygen and which greatly helps to prevent corrosion and water damage. It also protects against corrosive finger prints on metal work. it has been found to be longer lasting and gives a much better level of protection than the usual method of applying oil as a rust preventative.
It can be used on wooden stocks also and when applied to the whole of the surface of the stock (including under the action etc) helps to prevent the stock from absorbing water, which is very handy in a downpour!
The wax can be removed with white spirit etc if the need should arise , the coating can be periodically topped up to ensure full protection.
For anybody wanting to give their classic wood stocked blued rifle a better level of protection , then this product is a very affordable solution to an age old problem.
There are various tests etc and quite a lot of information about Renaissance Wax on YouTube and Google.
I have no financial link to this product by the way!
Hope this thread helps.