CLEAR Window Film Polarizing ?
Block heat? Reduces headlight dazzle? If it wasn't a 3M product I would sneer. But advertising and reality sometimes do not run parallel to each other. So I have to ask... Does anyone h...
Forum Discussion
The 3M blurb says it "rejects" 97% of the IR, and "blocks" 99% of the UV.
Does that mean it "reflects" those rays back out of the cab?
Or are they converted to heat in the film? Which eventually would heat up the glass. Which would be better than heating the interior surfaces with the IR, but not as good as reflecting the rays back out. And converting the UV to hot glass is better than letting it in as well.
But I've always thought outer sun shades covering stationary windows is preferable to non-reflective films. But realize that they may not be that feasible in vehicles and mobile homes.
Just curious ...
Does that mean it "reflects" those rays back out of the cab?
Or are they converted to heat in the film? Which eventually would heat up the glass. Which would be better than heating the interior surfaces with the IR, but not as good as reflecting the rays back out. And converting the UV to hot glass is better than letting it in as well.
But I've always thought outer sun shades covering stationary windows is preferable to non-reflective films. But realize that they may not be that feasible in vehicles and mobile homes.
Just curious ...
