Speaking of certifications and claims...as with any claims about a product, the ones made by reputable manufacturers
will be easily confirmed by any testing. Point in case, I stuck a small solar
panel under a glass sunroof (i.e. inside a car) to keep up a battery
during layups. Nope. There's a layer of 3M Crystalline on that glass, and the solar panel shows *zero* output when looking up at the noon sun through it.
Move it to an untreated side window, and the panel puts out.
There are all sorts of UV and IR claims, and different products. And 3M's Crystalline is not the only product designed as a "99%+" block, I recall
at least two other makers have similar. With the Crystalline, there's also a palpable reduction in heat, even through a "heat blocking" glass sunroof. So at least some of these products do meet their claims, and do cut the heat coming through the glazing.
Of course if you are sailing someplace where there's "winter" and you might actually want some heat...or you've been infested with cats that prefer to nap in the sunny spot...none of them might be the right choice.(G)
The perforated vinyl is designed to allow inkjet printing on a "white" plastic for vehicle wraps and business windows. Any "tinting" that it causes is just collateral damage, it was intended to allow big signs that could still be seen through--at least, from the darker inside looking out.