Older Carbon Bike Safety
As far as I know carbon is most prone to catastrophic failure of all frame materials. Depending on the type of separation you see it could be a bit dangerous to keep on using your bike as is. The catastrophic failure occurs because the epoxy becomes brittle over time. A new layer will probably extend the life of your frame just by protecting the original epoxy from the elements. However, it will also hide the progress of the degradation of the material underneath, so you won't be able to monitor the extent of the degradation. I'm not sure you could repair your frame to the extent that the new layers will be strong enough to replace the old ones.

But I'm not an expert, so I could be very wrong. Maybe your best bet is to send these guys a picture of the damage and ask them for their professional opinion.