Well got a call from the manufacturer yesterday
http://woolube.com.au/ and they put me in touch with their European distributor (Ireland) who don't actually have an American distributor yet even though they do have a link on their site, they have only been doing it for 6 months and are looking for a U.S agent, anybody????
They sent these links for marine uses, they say the spray does protect from growth but don't make that claim for the grease in fact say it has no antifoul properties although it is an anti drag so will probably make a blue hull as fast as a white one
http://lanoprotect.com/products-page/bio/
http://lanoprotect.com/applications/marine/
They may not say they are foul resistant but in the four or five years I have been using lanolin grease (not theirs) the clean up when we get home from tropical waters is 10-15 mins with a hot wash rather than a week scraping, even the growth that is there either comes off with the hotwash or with a light scrape and thats only where the bulk of the cover has been removed on sand etc while moving over a bar, so I certainly will continue to use it but only use one roller coat.
For anybody in Aust wanting to try it Bias (mail order) do have it but it's not in the catalogue.