Le Tonkinois (Lay-TON-kin-wah), Marine, 1 litre, is an all natural, environmentally friendly tung oil and linseed oil based varnish oil. It produces a rich, deep varnish finish that is strong and durable, yet it is very easy to apply and maintain. -A light sanding in between coatings is required. Between subsequent coats, just wipe down with a water dampened rag. Very user friendly, no complicated thinning or mixing, use right out of the can. - Le Tonkinois does not get brittle like synthetic varnishes, it does not crack, peel or blister. Rather, it moves with the wood, while at the same time preserving a durable, water resistant finish. - Each formula is easy to use, works like a horse, and is stunningly beautiful.