Jon, I've used both. I don't use duragilt any longer. I use plastic or wax foundation now. The wax coating and the thin plastic membrane frequently separated on the duragilt, resulting in a totally unusable frame. Just my experience.
The sale of Duragilt should be outlawed. When you have Duragilt in your hive and go into the fall and winter when it not drawn out then the bees will remove the wax coating and they will never build on it again. Instead they build combs between two Duragilt sheets in the early spring when cell building resumes.
With plastic foundation the same thing happens but you can rewax these frames by applying liquid wax with a brush
While I have done my share of swearing at Duragilt, some of my best frames have it as a foundation. If I put it in just as our strong flow starts, I get great frames drawn. Other times of the year you can get a mess.
So that is the big drawback for me. I can only place it in a hive in late May or June around here. I have a half box left that I will use. Placing a swarm in a box of it and continuing to feed might work also.
I choose neither; foundationless, starter-strip, or PF-120's are my preferred choices. My very first beehive I started with Duragilt, it was okay, but as soon as wax moths got a chance the combs based on Duragilt were done for and they weren't recoverable.
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