Well, we are almost out of the prototype phase with the combs. We have broken many, learned a lot about finishing them, and experimented with shapes, tooth size, and spacing. I’ve discovered that sanding to four hundred grit is sufficient for a smooth feel.
I am using food-grade tung oil for the finish. Right now, they glisten because the oil is still soaking in. Tung gives a soft, lustrous, and durable scent-free finish once cured. The oil I am using is not the same as in teak oil formulas or other finishing products. It is just pure oil without any additives. However, I am also testing other food-safe alternatives. My final choice must be non-allergenic and protect the wood. Right away, any number of food oils might spring to mind, but as in finishing spoons, you do not want to use anything that might turn rancid.
The small designs were added using my laser engraver. Using the laser, I can also add names on the combs.
My next post on combs will be the last as I develop these ideas into actual projects.