No, I am merely doubting the existence of a product whose alleged effect I cannot explain scientifically.
Have you ever heard of Occam's razor?
[*]Of several possible sufficient explanations for one and the same fact, the simplest theory is to be preferred over all others.
[*]A theory is simple if it contains as few variables and hypotheses as possible and if these stand in clear logical relationships to each other, from which the fact to be explained logically follows.
Here we have 2 possible theories.
1. Either there is a product that possesses the advertised properties, without the way it works being comprehensibly described or proven. A product that could drive all other insulation materials, at least in most areas, off the market. With which we could solve our climate protection goals and thermal insulation in the housing sector without extreme costs and material effort. A product that is cheap, easy to manufacture, and moreover very easy to process.
or
2. It is fraud
The material clearly has product properties, but 1-3 mm of this coating do not replace several centimeters thick insulation made of mineral wool/EPS/wood fiber.
I would say everyone should decide for themselves whether they want to use this product... But since I fear that someone might really try it out of curiosity, this topic should better be deleted.