Exotic wood species such as Garapa, Teak, Cumaru and Jatoba are less common in Canada, where softwoods such as cedar and pine are widely used for deck projects because they are easier to find and less expensive. Exotic woods are very dense and hard, and are an interesting option for a deck with a rich and durable appearance. However, due to their very high density and hardness, these exotic species require specific preparations to achieve a resistant and easy-to-maintain finish.
To start, aggressive sanding with an 80-grit sandpaper is necessary to maximize the wood pores' opening. It is also important to note that some species produce natural oils that can repel protective products. After sanding, the wood must be pressure washed to remove any dust and debris. Once the wood is dry, it can be treated following the manufacturer's instructions.
It is important to choose a colored product to maximize protection against UV rays. Contrary to popular belief, exotic woods are not naturally more resistant to graying caused by UV rays. Only the application of superior quality products will effectively protect your investment.