Not this product but I have seen many logbooks of waterproof papers, and I've used several times for mine.
Generally it's certainly wonderful under wet environment. We can get (here in Japan) notepad type (4''x3'' - 3''x1'') and it's easy to use. Also available sheet type (8''x11''), suitable for printers (laser & inkjet available). It's rather thick (but not thick as "photo paper"). We must print rules, headers, etc. for log sheet, but IMO, its scrub-proof ability for toner of laser printer is rather weak.
Moreover, the waterproof logbooks easily rejects aqueous ink; the ink once fixes after it dries, but I've seen ink ran in wet condition. Always ziploc is important for containing logbook.
