how does oil finish age?

Re: how does oil finish age?

I have Tru-oil on guitar and pure Tung Oil (100% organic oil sold at Rockler, not the processed "Tung Oil" from the hardware store) on another.
The Tru-oil leaves a glossy coating as it dries (light coating=dull, more coats=more gloss). I've had that finish for 7 years and it still has the same dull sheen as when I first applied it. The Tru-oil stinks and is nasty to get on the hands.
The other guitar with the pure Tung Oil finish does dry up some after several years. I've had this finish for 7 years to and ever few years I clean down the guitar and give it another light coat. The oil does build up over time leaving you with a rich, warm finish. Mahogany gets darker and maple gets that aged butterscotch look. I'd suggest getting the pure Tung Oil.
 
Re: how does oil finish age?

You are talking about very different finishes.

Natural oils, such pure Tung Oil, or Danish oil has to be replenished over time. Oils containing polymers such as Tru Oil (gunstock) or Tung Oil Finish (Minwax) dry harder, and will generally last years before needing to be replenished.

Natural oils will not seal or protect the wood from moisture as well as the polymer finishes.

Birchwood Casey Tru Oil is an easy finish to apply, care for, and feels great especially if you final finish with the gunstock wax (ala EBMM).
 
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