Karen Oland wrote:

>Yes, all the plastic hive parts (except one or two bottoms and one top) that
>i have (and have seen) are warped. Inner covers the worst, then boxes. Tops
>and bottoms the least warping.
>
We are probably talking about different plastics and different makeup
(solid vs foam). Some plastics have "memory" if made into a solid shape.
Heat does not necessarily warp them but they actually revert to their
memorized shape (depends on the stresses in the plastic at manufacture
so you can end up with different outcomes depending on the uniformity of
manufacture). Heat will allow them to revert, but they would do so in a
long enough time with or without heat.

Foam constructed bodies would be less prone to have memory while denser
bodies would be likely to "warp". Also depends on the plastic.

Bill Truesdell
Bath, Maine