Re: Interlux Micron CSC Ablative
We've used Micron CSC for years, but have generally applied it in the spring. If they're telling you that you need to reactiviate it, they're probably right. Leaving it exposed in the air may create an oxidation layer on the outside, which would need to be removed so that the antifouling will leach out. That said, we've also had years where we simply touched up spots on the bottom and launched with the previous year's paint still on. If growth occurred because boat motion didn't reactivate the paint, a quick wash a week or two later did the trick for us.