As far as I know, the product doesn't claim to block or reflect any infrared light. It claims to block nearly all ultraviolet light, which of course is on the opposite end of the light spectrum. Soon, I should be receiving a good heat metering tool that I ordered, and then I plan a test of how effectively the tint prevents heat buildup on the dashboard.
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See my car's mod & maintenance thread and my electric bicycle's thread for ongoing projects. I will rebuild Black and Green over decades as parts die, until it becomes a different car of roughly the same shape and color. My minimum fuel economy goal is 55 mpg while averaging posted speed limits. I generally top 60 mpg. See also my Honda manual transmission specs thread.
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