At the beginning of this article I mentioned that Strataglass doesn't fit the general recommendations for regular untreated vinyl windows. The reason behind this is that it is treated, at the factory, with a special protective coating which if maintained in accordance with their recommendations will last the life of the fabric and prevent the chemical leaching which is the cause of problems for the untreated fabrics.
I don't want to get too far into specifics with this as they do have a website of their own and have care and cleaning advise which they offer their customers. If you have Strataglass® curtains on your boat I suggest going to their website at http://www.webworksgroup.com/projects/strata/beta2/index.html and seeing just what they suggest for their product.