If I don`t have the time or agreeable weather to polish off Cancoat that I applied almost a year ago can I just put another coat on? Come Spring I should have the time to polish whatever is left off and apply a more long term coating. I just need it to get me through the Winter again much like I did last year.
Just do a strong decon wash with an iron remover and a strong soap such as Reset or similar and then go for it. As Coatings=crack said, don`t use anything else such as toppers or drying aids on the paint or they may interfere with CanCoat. It may not last a year without better prep but should absolutely get you through the winter.