Gelatin is a protein. DNA is a protein. Sunlight breaks down proteins-— cooks them in fact. Reflectivity would absorb solar radiation, and, also the “material” would fall apart. Like every chemical agent Chi-Coms have “come up” with.
Remember Melamine— FReepers? Melamine was mixed with animal feed so that spectrographic analysis would yield HIGH protein content (ie, high amino acid content) to be able to charge premium prices for US and world consumers. It was-— plastic and killed a lot of livestock and yes, pets as well.
This is FAKE crap. Gelatin and DNA— sure thing.
So, it’s like an ablative sun shield. Sure, it will work until there is nothing left to break down.
That sounds expensive over the long haul, even if this works as advertised.