How long can I leave roof before topcoat

[Ash10010]

I wonder if anyone could tell me if it is ok to leave my roof without the topcoat? The roof is watertight and has had 600g CSM and resin. The weather is getting colder now, do you think it would be better to wait till it gets warmer to apply the topcoat, how long can I leave it without it?
Thanks

 

[catlad]

Never ideal to leave it, but not sure you have much choice now!
You can get winter catalists but I would leave it now till the weather warms up.
You will need to buff it up when you revisit it and wipe it with acetone.

 

[oldbutnotdead]

Also be a good idea to sheet it over as much as possible- the resin as it is is porous, over a day or 2 it's not a problem, if you leave it all winter you will have issues.
With luck you'll get a day or 2 of bright sunshine- if you do, spend the morning cleaning up and washing it with acetone then mix up your topcoat and get it on no later than 12 ish (to get max UV on it).
EDIT Yes get winter catalyst as well.

 

[Ash10010]

Thanks. There is a couple of days forecasted for 5/6 degrees at midday and sunshine at the end of this week. I might giving the topcoat ago then.