Double boiled linseed oil contains extra chemical additives that boiled linseed oil does not have. These chemical are added to help with the drying process.
Boiled linseed oil is used as a preservative for concrete and wood. It is also used as an ingredient in paints, varnishes, and stains.
We use linseed oil because it soaks into the the bat and makes it moist and knocking in becomes much easier but make sure to use raw linseed oil and not boiled linseed oil. The bat does not soak boiled linseed oil. Raw linseed oil not only increases the life of the bat but also makes the performance of the bat better.
Boiled Linseed Oil has drying agents formulated into the product after "cooking" to hasten drying. Raw Linseed Oil takes 10-14 days to dry but has a thicker more durable finish than Boiled Linseed Oil does because it has been thinned with other chemicals and products.
Usually a mix of Tung Oil and Boiled Linseed Oil with mineral spirits to thin.
It MUST be raw linseed oil if you are using the oil cloth in contact with any food. "Boiled" linseed oil has many toxic solvents, dryers, and other additives. You might consider purchasing the linseed oil (flax seed oil) from a health food store rather than a hardware store.
Boiled linseed oil typically offers better protection for metal surfaces compared to raw linseed oil. The boiling process allows the linseed oil to cure faster and form a harder finish, which helps to provide increased durability and protection against rust and corrosion on metal surfaces.
It is also used to start spontanious combustion fires. The raw oil is worse than the boiled linseed oil. DO NOT leave rags "balled up", they can ignite in less than a day. Be Careful!
Food-grade mineral oil. NOT Olive oil or vegetable oil (they will go rancid).
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"
It would be ok as long as you are not using the board for food preparation purposes.
I normally use methylated spirits and "00" grade wire wool.