N_Cook wrote:

There's all sort of kitchen bakeware made of silicone rubber around
these days. Cut the perimeter band off an 8/10 or 12 inch pie mould , it
can stretch quite a lot, to wrap around a pan.

Thanks, that probably would do. It's about 3 inches in diameter and 1/4 of an
inch thick.

Geoff.

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Geoffrey S. Mendelson, N3OWJ/4X1GM/KBUH7245/KBUW5379