This Ronseal Ultimate Protection Decking Oil has the following specification: Colour: Dark Oak Size: 2.5 litre Ronseal Ultimate Protection Decking Oil provides superior, natural looking protection, for a longer lasting finish. The unique formula penetrates deeper into the wood to provide increased durability. Providing a lightly tinted finish it will give double the weather resistance and foot traffic protection versus standard decking oils. Unique, new to the market, water-based Linseed Oil technology, colours and waterproofs your deck in one easy step. Gives a more natural look to your deck and is rainproof in 90 minutes, recoat in 4 hours. Primarily for use on pre-treated decking. Preparation - Untreated, weathered decking: For untreated grey and weathered wood,.