Does this product help block heat from the sun?

This film will stop approx 46% of the total solar energy. It is 100% opaque and you cannot see through it in either direction. We do have an exterior solar film that stops more heat, but it is reflective and see through. Here is the link if you are interested: https://www.decorativefilm.com/ultracool-s2060osw-outside-weatherable-heat-rejection-film