No word to describe this product!
I have a 41' aluminum boat.  I used this product to clean the engine rooms (total of 2.)  The walls and flooring are 1/4 aluminum diamond plate.  It had not been cleaned since 1994.  After I applied this product and left it for 15 minutes I hosed it off with clean tap water.  It turned out amazing!  Please, please, please-make sure you have a very well vented area.  If you are in an enclosed area, you may want to consult the internet, but I would recommend a respirator.  The instructions say to cut it 15-1, and usually when you cut something it loses it potency -not this stuff!  Remember, it is an acid, so treat it as such. I've read that some people didn't like the product, I'm not sure what they have to complain about.  I wish I had taken a before picture of the engine rooms.  Dirt, stain and oil --gone!
Rating: 5 stars