Can linseed oil be used to seal concrete?

Linseed oil is a traditional PRESERVATIVE and has been used for centuries for concrete, masonry, wood and metal. You would mix it 1 parts linseed to 2 parts turpentine (not mineral spirits), but the mixture would vary. You want to used boiled linseed oil, not raw linseed oil (check the label).

Note this is not a SEALANT but a preservative- if you are doing your garage or basement floor, try something else!

Also be careful- the tools and rags you use can spontaneously combust (i.e.: burst into flame, no kidding!) when being used with linseed oil. Check the Wikipedia page for details under "Linseed Oil"