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Old 05-08-2007, 12:59 PM
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Join Date: Dec 2004
Location: Northwestern Ohio
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Spectral reflection (glossy) vs diffused (matte or flat) makes a big difference in IR absorption.

ALSO

Color pigment makes a difference, i.e. it might be gray to visible light, but its white to IR.

I ran several "sun light" tests on my gray and didn't see a significant increase compared to white.

I'll repeat these test this weekend if it gets sunny out.

Waiter
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