Le Tonkinois Marine Nº1 Linseed Oil Varnish is a high-performance, long-lasting, natural oil varnish for all types of wood. It can be used indoors or outdoors in marine, architectural, and decorative projects. The varnish penetrates and integrates with the wood fibre, remaining very elastic, and will not crack or peel. Nevertheless, it is very durable and resistant to scuffs, abrasion, and corrosion, even in harsh marine environments and below the water line. Marine Nº1 performs well under changes in temperature and unusual weather conditions, and is also very resistant to UV light. Le Tonkinois Linseed Oil Varnish is made from pure linseed oil and tung oil, cooked in a proprietary process by the same family in France since 1906. The recipe was, in fact, learned from the Vietnamese during French colonization, so its true age is unknown. For almost 100 years, it was the official varnish of the French Navy. Marine Nº1 Linseed Oil Varnish is refined at a higher temperature than the Classic Anti-corrosion Varnish, and so it has some different characteristics, such as: Higher resistance to scuffs and abrasion; Thinner, more elastic, and penetrates deeper; Produces a higher gloss; Even greater UV resistance; Dries faster (re-coat after 10-12 hours under ideal conditions); Does not form a skin in the can; APPLICATION Apply Marine Nº1 Linseed Oil Varnish in thin coats to a clean and dry surface with a brush, roller, or sprayer, and without thinning the oil. For even longer lasting results, impregnate wood surfaces with Le Tonkinois Bio Impression Oil before top coating with varnish. Number of coats depends on the condition of the wood and desired level of protection: Interior surfaces: 3-6 coats. Exterior surfaces: 6-10 coats. Marine surfaces: 10+ coats. COVERAGE Approximately 20 m2 (215 SQFT) per litre per coat. More coats = more protection. DRYING TIME Approximately 10-12 hours at room temperature, with good ventilation and low humidity.