I recently added a super to a very populated two deep hive with well over 7/10 frames full. The super, is a new super with plastic foundation. I added it close to two weeks ago, and upon inspection, there is no drawn comb on any of it. I've heard that spraying sugar water solution will help, or possibly painting with bees wax. I didn't add a queen excluder, because I thought that they should get some comb built before I restricted any movement.
Am I overreacting? Should I just give it time? We have had a very cold wet spring, so maybe they just need more time.
I know there are a lot of opinions on plastic, duraglit and just plain bees wax. Is there a better or worse product for a new beekeeper?