Great choice in boats!

Your boat will survive without the coating till summer but if you run any water where you'll do some rock bouncing I strongly recommend you put something on the bottom because raw aluminum is "sticky" when it contacts rocks and if your in wild water it could cause the boat to react in a way that you don't anticipate.........that would be bad.

I recommend and use "Coat-it". It's an improvement over gluvit because it includes graphite in the resin which makes it slippery. It takes 2-3 coats to last on the boat bottom and offer good gliding qualities.

If you can find a shop with a heat source you can apply it easily this time of year. Heat equals a faster curing time and helps it set up better. I've applied emergency coatings in the winter before with the above mentioned heated shop and it worked great.