Retractable awnings exposed to high salt environments often experience an elevated amount of corrosion which can cause the moving parts including the pitch adjustment mechanisms to bind or seize.  This DOW CORNING ® 4 Electrical insulating compound will significantly reduce this problem when it's applied during the initial installation.  It's a clear, easy to apply gel that is water and chemical resistant.  Follow this link for more info and to get a sample.

http://www.dowcorning.com/applications/search/products/Details.aspx?prod=01903128&type=PROD&bhcp=1.