Cleaning and Refinishing a Cumaru dock
Cleaning and refinishing a Cumaru dock – another look at refinishing your hardwood deck
We recently were called upon to refinish a Cumaru dock. The same technique is used for any standard cleaners and finishers. The deck cleaner was an oxalic acid based. Finisher need to be made for Ipe. Be sure to look at the back of the can “Ipe” and it will work on any Brazilian Hardwood.
A good way to estimate what your deck or dock will look like is to pour water on it. That will be close to what it will look like when you apply finisher.
TIP: If your deck or dock does not come back to color, you can try a light pressure washer. We have used electric, 2000 pound washer and recovered decks that have been ignored for a few years. Be very CAREFUL using a pressure washer as it can damage the wood fibers.
We used a regular pump sprayer to apply the cleaner. Any deck cleaner will work but we have only tested the ones with Oxalic acid. They come powdered or liquid usually as a concentrate.
Cleaning was done Saturday Morning with the Finisher scheduled for Sunday Morning
Preparation for the Finisher
Sunday morning, the deck is very dry and ready for Finisher
We put several gallons into a single 5 Gallon bucket. This both insure there is no color variation between cans and makes it much easier to apply.