[Cutsman3]

I've recently started doing some inlay for fun. One of my first inlay projects was a belt buckle made out of walnut that also contains a little bit of marble wood as well. I like the deep toned natural look, so I just finished it with some mineral oil. This is fine for me because I can easily apply more after sanding down a nick or a rough edge from getting wet. However, someone has commissioned me to make one for them, and I need to come up with a more durable and waterproof option for a finish. I don't mind a little bit of gloss, but I'd like to keep somewhat of a natural look if possible. What are my best options? Is it something I would have to special order or could I pick it up at a local big box hardware store?

 

[Bill White 2]

Watco Danish oil. It has some varnish for some life to the finish as well as oils that will enhance the look of the wood. It is easily renewed as well.
Bill

 

[CDSD]

I have the same question. I have 6 buckles; 3 from some nice dark walnut with nice grain, and 3 with the same walnut inlaid with different designs of oak. I've finished them all with 2 coats of boiled linseed oil and they are currently drying. I do like the look, but I think I want a bit more shine. I'm going to experiment with 2 of my less attractive ones and use a satin and a gloss poly. I'll let you know how they come out.

Any other suggestions welcomed.

Also, how long should I wait for the linseed to dry before applying a poly?

 

[Cutsman3]

I ended up using a Beall woodbuff kit along with custom blend of oil, similar to danish oil. It's been about 5 years since I posted that.
Here's an example of the finished product: https://imgur.com/a/HRSiDH6
Let me know how it goes!