Are these old fashioned chest freezers, the kind with exposed coils? I recently bought a tiny 5cu ft and found the coils embedded into the walls, which seems counter productive.
Condenser coils that is, the ones that get hot during operation
Probably silicon so as to not be electrically conductive.
Going to wrap (4) 26 cubic foot chest freezers then foam what little the sheet cannot cover. May even do the headliner, doors, floor and behind the back seat in the toad. I have sticky mirror cutouts for the glass.
Last I heard aerogel is exceptionally expensive. I haven't heard that it made it's way into a commercial product. It can be used in industrial/scientific applications where the cost can be handled.
Arctic Fox 25Y Travel Trailer 2018 RAM 2500 6.7L 4WD shortbed Straightline dual cam hitch 400W Solar with Victron controller Superbumper