As I am finishing my Don Hill style 16'er I noticed that I am getting some mildew growing on the Teak oil finished ribs. The ribs have 2+ coats of Teak oil. The boat is stored in an open two car garage, no doors.
Does anyone know if boiled linseed oil is any better at preventing mildew than Teak oil?
I live on the Olympic Peninsula across the Hood Cannel from the Olympic mountains, NW Washington state. I know, rain forest.
John: The Wooden Boat Forum had a guy that had "mold" on the outside of his log home. He applied a mixture of borax and propylene glycol to cure the problem . No other info about how to dilute/proportions etc. Try it on a rib and see what happens. Ethylene glycol(antifreeze) might work as well.
I use the boiled linseed oil/turps/japan drier mix on the stairs from the cottage down to the beach and have not had a problem with mildew. It will darken the wood over time but this might be oxidation of the mix as well as UV degradation. One of my kids has a Phd in chemistry and will ask him if any of this makes sense. These Cal Tech guys have opinions on everything-right or wrong!
To solve the same problem on CVG doug fir gunnels I cleaned them up with 10% bleach solution and then varnished. Any mildew can now be cleaned off with soap.
I live in the northern Cal redwoods and we get mildew on everything.
Update; I wiped "30 seconds" straight from the jug with a paper towel on the ribs. Mildew disappeared, good as before. I am going to try the LVT, linseed/varnish/turpentine mix to see if this will end the mildew. If it does not stop the mildew "30 seconds" will have a place on my drifter.
I had a similar experience with Watco teak oil (only time I ever used it). Before and after I always use Daly's teak oil with no issue. If you go the LVT route you may want to throw some Japan drier in a well.
Well well, what do you know Watco teak oil is the same oil that is mildewing on my boat. I will look for the Japan dryer.
I have all of the players ready. Is the LVT mix equal parts of each w/Japan dryer as listed in the can?