Raw Linseed oil is heated and the air is blown to produce Double Boiled Linseed Oil. Heating the oil causes it to polymerize and oxidize, effectively making it thicker and shortening its drying time. It dries more completely and quickly and forms a film on the surface. Double Boiled Linseed Oil is a dark amber coloured oil having a distinctively sharp smell. This oil is mainly used indoors. It is very water resistant, and also a rust inhibitor. It has a high viscosity when compared to Raw Linseed oil.

In the construction industry
DBLO is used as a natural wood preservative and wood finish due to its increased durability, quality of finish and resistance to surface damage. It is used for the maintenance of wooden articles and tools, for interior and exterior use on bare woods (other than oak), as an additive to glazing putty, in concrete, in caulking compounds, earthen floors, and sealants, as an alternative to solvent-based products designed for sealing, polishing, waxing, varnishing and finishing, in the manufacture of Linoleum, in corrosion protection, in pigment pastes, for removing stains, as a sealer for terracotta tiles and stone floors, in stone items, in chrome fittings, flywire screens, in brick work, and preserving galvanised roofs.

In the sports goods industry
In the maintenance of sports equipment like Skis, Cricket bats, Baseball bats, Hockey sticks, Archery equipment and Croquet Mallets.

Other Industrial uses
DBLO is used in foundries. It is used in industrial lubricants, sealants and Printing ink resins, to maintain carvings, wooden boats, canoes, fishing rods and Gun Stocks, etc, by the fire department to treat the wood handles of hand tools that have metal implements to prevent buildup of static electricity, for the protection and preservation of farming tools and equipment.

Safety Precautions
Always replace the lid otherwise the oil can deteriorate. Rags soaked in DBLO may self-ignite. Soak them in water and dispose of them.