LC,
Regardless of whether you choose a product like Pilkington's, or a quality tung oil, or a combination of perhaps tung oil and marine spar varnish......one usually begins with several soaker coats where it's one part of finish to as much as four parts turpentine or paint thinner. That 1:4 mixture will be so thin in nature and penetrate so deeply that you needn't worry about a sealant. Following those several coats with adequate dry time (usually 24 hrs.) you can then begin your sanded-in applications using the same oil at a 1: 2 ratio. Hope that's of some help.......
