These products reduce the work (heat loading) that "resistance insulation" such a fiberglass, foam, and rock wool have to do.
So far no manufacturer has provided any independent test results to substantiate any claims of improved performance over standard paint technology.
All independent tests have shown that the proprietary formulas offer no advantages at all over plain old acrylic paint.
In spite of impressive "web presence" several of these companies appear to be "ghost ships" operating in the cloak of obscurity offered by internet sales and unable to provide any local representation or product stocks.
"[4] They also said, "Such products have the primary goal of reducing solar absorption to decrease air conditioning loads.
In 2003, after exhaustive research into how their technology was utilized, NASA selected the original Spinoff industry leader.