After seeing a post/photo on this group where the poster added a Reflexit overcoat to their refrigerator, I copied the idea.
https://youtu.be/J359xOgRn-8
When I was using a cooler Reflexit worked well on the cooler too (extending ice life and providing lots of conversations with other campers).
It seems to be working at better radiant heat insulation, but I have not taken measurements yet and can’t provide data. The fridge skin is definitely cooler when the sun is hitting it (before Reflexit it was getting rather warm in the sun). Of course I try and keep it out of the sun where possible.
I cant remember who posted it originally – but Thank You. Maybe you can repost the photo so others can see a better example!
=Cosmo