What is "BLO"?
Lots of options for this type of project. For an "in-the-wood" finish, you can make your own wiping varnish. Mix boiled linseed oil, varnish (e.q. oil-based poly) and mineral spirits in equal parts and wipe it on with a rag. Let it sit for 15-20 minutes and wipe off the excess with a clean rag. Three coats will do it. Note that this will not give you any kind of film, nor will it give you a glossy sheen.It is a bookcase/display case that is 38" high by 8' and will be used as a room divider so front and back are finished. Backing is made with tongue and grove.
Lots of options for this type of project. For an "in-the-wood" finish, you can make your own wiping varnish. Mix boiled linseed oil, varnish (e.q. oil-based poly) and mineral spirits in equal parts and wipe it on with a rag. Let it sit for 15-20 minutes and wipe off the excess with a clean rag. Three coats will do it. Note that this will not give you any kind of film, nor will it give you a glossy sheen.