V-Kool 70
Heat build up and nighttime or daytime visibility (looking out) are maximized with V-Kool 70 due to the high degree of clarity of this window coating.  It is virtually clear.  It is also well suited to reduce solar heat while maintaining architectural integrity.

V-Kool 75
Has most of the advantage of V-Kool 70 with less solar heat rejection.  This product will give you the most clarity, with reduced heat rejection versus V-Kool 70.

V-Kool 65
Has similar advantage of V-Kool 70, but with less solar heat rejection and less clarity.  It is a lower cost solution.

V-Kool 40
When solar heat build up is the primary problem, V-Kool 35 maximizes solar heat reduction.  V-Kool 40 is best suited for UV fade and heat buildup.

V-Kool 35
For solar heat reduction and glare reduction V-Kool 35 and 40 are your better choices.

TECHNOLOGY

Construction

V-Kool® was originally developed for America's Space and Defense programs. It represents an important breakthrough in surface and partical science. It works through a patented process known as sputtering in which tiny particles of exotic metals are embedded in optically clear, durable polyester film. We use a durable pressure-sensitive adhesive to adhere to the glass and on the other side is a durable Scratch Resistant coating to ensure a long life.

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Spectrum Graph

V-Kool® is spectrally selective and allows in 73% Visible Light, while blocking over 90% infrared spectrum. This means your window remains Visibly Clear but cuts out 55% of the Solar Heat. No other product can match V-Kool®'s performance. When applied to your windows, V-Kool® forms a virtually clear barrier. That means less need for expensive air conditioning and electric lighting, making V-Kool® a great way to help control soaring energy costs.

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Performance Chart

Performance of V-Kool® Window films on various types of glass:

Performance Pdf (16 kb)

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CSI Specifications

CSI specifications for Architectual software:

Specification Pdf (28 kb)

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Popular Science

It's True! V-Kool®'s spectrally selective technology has been voted as one of the Top 100 inventions of the Millenium, along side other essentials like canned food, the refrigerator, computer, insulation, internet and the telephone*. "For years, windows were a big yawn. Sure, they let in too much cold in the winter and heat in the summer, but c'est la vie. But the introduction of new glazing systems in the early 1980's kicked off a surge in window technology that sparked such enthused descriptions as "Wonder Windows" and Superwindows." Among the dramatic innovations were coatings that let in light but not heat; inert-gas filling between panes; and heat-stopping edge spacers.

The Southwall Heat Mirror, a heat-retaining film, was one of the more dramatic advances." - Popular Science Magazine, November 1999

http://www.popsci.com/popsci/

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