Exterior Osmo one coat in winter temperatures?

[dockyrph]

my carpenter (young and capable but doesn't know everything!) is understandably reluctant to sand my recycled decking as he is not sure whether the application of Osmo One Coat Only HS plus will dry/be effective if used in these current low temperatures . We can't find any technical info on the Osmo website about use in low temperatures. Does anybody have any experience of applying this product or similar in low temperatures? of course I can wait however there is no guarantee that temperatures will rise substantially anytime soon and my decking is currently covered in tarps and looks horrendous so would like to get this done sooner rather than later (ie the spring!) be grateful for any info ... product jolly expensive so don't really want to experiment ... Thanks!