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V-Kool was first installed in the U.S. in 1991 and was originally invented as a specialty item for the U.S. government and was applied to the U.S. Military’s Stealth Bombers. Performance data was obtained using a Perkin-Elmer Lambda 9 Spectrophotometer in combination with the “Window 4.0 Fenestration Program” provided by the Windows and Daylighting group at the Lawrence Berkeley Laboratories, the world’s foremost window science group. No other spectrally selective window film has been around half this length of time.

V-Kool has been partnered with Energy Star for many years because it is an energy efficient product.

V-Kool should not void your glass warranty, however most glass companies void their warranty if you put any type of product on the glass, which is unfortunate. We do offer an extended warranty that does coincide with the manufacturer’s warranty. Please check our warranty for any questions or concerns. Statistics show V-Kool’s incidence of glass breakage is considerably less than the glass industry’s own incidence of breakage; therefore we do not recommend the extended warranty.

V-Kool does not necessarily make the glass stronger, but it will keep the glass intact if it is struck by a foreign object. We do have safety film that takes a tremendous amount of abuse for safety and security applications.

Similar to the previous question, however V-Kool and other window films do make your glass shatter resistant. V-Kool does have safety and security film for various applications. (It will keep shards of glass from flying)

No other film can transmit as much light and reject the same amount of heat as V-Kool. VK 70 has the highest luminous efficacy in the industry.

Absolutely, V-Kool is no more reflective than plain clear glass, so it does not distort or hinder your view day or night.

V-Kool is no more reflective than clear glass, and some of our films (as tested) have lower reflectivity than glass, so you keep your visual clarity day and night. VK 70 is 2% less reflective than glass that no other heat rejecting film can boast!

No other film can transmit as much light and reject the same amount of heat as V-Kool.

V-Kool blocks 99% of the ultraviolet rays.

We do have glare reducing films but we do not eliminate the entire glare because you would have no light let through if so.

V-Kool does reject 99% of the ultraviolet rays which is the main component of fading, no window film or any other window product (except a brick wall) stops fading but V-Kool will help to appreciably (or use the word- substantially) extend the life of your furnishings. However there are other factors that cause fading; such as heat, light, and the quality of the materials you are trying to protect.

No, it is a metalized product that contains gold and silver that rejects the heat without a shiny appearance versus absorbing heat.

You will have more visible light transmission and better solar heat rejection while creating less stress on the glass from absorption.

V-Kool is usually much less expensive than replacement windows and can give you the same or better energy savings and does not change the aesthetics of the glass like a lot of low E and E2 glass. The same technology in new windows has been used by V-Kool for over 13 years.

Yes, since most V-Kool films have the lowest absorption rates, we can satisfy most applications. Please check with us for your specific application, which also includes laminated glass.

Yes, V-Kool can be applied to most any size of glass, realizing that the installation time may be the same on a small piece of glass as it is on a large piece of glass.

Depending on the amount of glass and the orientation of your windows will determine the amount of energy savings. In most cases there is a 3 to 4 year payback period on your utility bills and it normally reduces 33%-50% of energy costs annually. History shows utility rates increase just about every other year, so your lifetime warranty is a sure money saver.

V-Kool is applied on the inside of the glass and our certified installers use the proper tools and equipment to guarantee your application for as long as you own your home. Water is used to activate the adhesive, so it may take up to 30 days to completely dry.

During the window film drying process, you may notice changes in the optical clarity. A cloudy appearance may occur. If this happens, it is normal and will go away. After the moisture dries, the hazy appearance will disappear as the film bonds to the glass. V-KOOL “cures” at a slower rate than other films. It is also important to note that drying times are dramatically affected by climate.

V-Kool is warranted to never bubble or change colors. V-Kool is made of silver and gold and does not use dyes, which have a tendency to change colors because they are not stable. Bubbling is usually a result improper installation, so no window film should result in bubbling.

Do not wash windows until (30) days after installation of V-Kool. When cleaning use a soft towel or cloth or a clean synthetic sponge. Use common cleaning solutions such as warm water and detergent. Do not use solutions that contain abrasive materials. Common cleaning solutions such as Windex and other window cleaners may be used safely for cleaning purposes.

The incidence of glass breakage with V-Kool is less than 1/10 of 1% of all film sold. This includes those incidences where we might install V-Kool on windows that may already have a weak spot (crack, chip) in the glass. The right film application should not break your windows or cause seal failure, we do warranty against these problems, please ask your V-Kool dealer to go over our superb warranty.

V-Kool has passed the ASTM D-1044 Scratch Resistant Test. Most window films are protected with this scratch coat technology. When subjected to the 100 cycles of the taber abrader at 500 grams. Square inch pressure of steel wool, the result is less than 4% haze.

We have applications that are over 13 years old. The window film industry suggests that V-Kool film will last 10-15 years.

We have many repeat customers and references that will attest to its quality. V-Kool is independently tested and you will immediately feel the difference in our heat demonstration.