Yeah, we’ve used those reels before for stands, we call them “tin cans”. We normally use metal ag panels, as they conform well to the round walls. One thing I’ve found is that the ridges of ag or r panel help with the noise vs flat sheet metal. Also, if you put weatherstripping between the ag panel and metal frame, that quiets the clanging and the metal vibration. I put two stands together this year and I used “camper seal” from lowes or hd as the weatherstripping and it worked great. It’s relatively cheap for the length that the roll comes in and it adheres really well. I put it on all metal surfaces that the panels touch. Causes the clang to be reduced to a low thud.
I know that’s not a different material like you asked for, but maybe that will help.
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