I may have posted about this before, but if I did I can't find it.
I am repairing two antique dining room chairs made of teak for my daughter.
After gluing up and coating with teak penetrating wood stain, to provide color match,
I will coat the dried stain with Johnson's paste floor wax. It leaves a protected finish with a soft luster.
A can if wax will last for years. If you have not tried it, you might want to.