What can I use to waterproof bamboo?

I'd like to use some bamboo poles that I have to make a wall for a shower. They will be getting wet pretty regularly. What would be the best stuff to use to seal and protect it from rot or mildew.

What can I use to waterproof bamboo?
after your sure they're completely dry spray on 2-3 coats of good polyurethane.
Reply:Bamboo is naturally waterproof but you probably could coat it with polyurethane......
Reply:A friend of mine made a hot tub out of bamboo, well the sides actually.were lined with bamboo, as the bamboo was not for structural use but decorative. No over the counter product was suitable for immersion of the bamboo in water. He finally found a company who waterproofs concrete to spray the insides of the tub with a clear plastic used in swimming pools that have a decorative pattern in the tiles on the bottom. It worked for him, but it also caused a problem with algea now having crevices to grow in undisturbed, which I suspect will also be a problem in your shower, crevices where water will stay for long periods of time. Waterproofing the bamboo may be the least of your problems. Cleaning the crevices may be almost impossible.
Reply:How you install the bamboo will be very important. Your idea is fascinating, if you are doing what I think. If the poles are installed next to each other to create the interior of the shower you must first make sure that durarock is installed as the base. I don't recommend that you install it over the existing tile.



Each stick will have to be precoated with polyurethane and then reapplied after it is installed. There will be small spaces between the poles. You will have to decide how you plan to treat that area either with caulking or grout.



I would recommend a marine grade poly. Don't use an inexpensive product from a local home improvement store.



Good Luck!