In 1962 we received a maple segmented salad bowl set as a wedding gift. Last year I refinished the set and applied several coats of Walnut oil. This winter one segment of the large bowl lip (rim) has de-laminated. This segment is about 1 1/2" vertical X 5" horizontal. The gap produced by the de-lamination is approx. 1/62" wide at the rim and tapering down to nothing. The bowl is still usable. I fear that further de-lamination will take place. Apart from filling the crack will some bonding agent I do not know what is the best thing to do?
Denis