A couple of years ago I made my first piece using veneer. I used contact cement to adhere mahogany veneer to plywood. Everything went well but I have two questions. What are the negative aspects of using contact cement? Does it have the same longevity as hide glue, PVA, etc? I would also like to know if it is safe to use Danish oil on it, or will it soak through and cause it to lift from the contact cement?