tried these for some years tend to buckle in hive heat twist when being lifted from box, find that comb is rather 'wild' I have gone back to wood frames
Will they withstand a good boiling in a few years or will they be something else on the land fill site. Traditional disposal of wooden frames is to burn them in case of nasties so other bees can't rob them.
I bought a box of 100+ MD shallow black plastic one piece to try OSB method about 3yrs ago, most are now in use.
If an area of comb is misdrawn I take that section back and let them try again, I have just a few that have a bow in the top bar and generally find them to be robust.
The frame design of the ones I have is not good and are difficult to clean.
I am now trying plastic foundation with wood frames, and find this to be a much better option.