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LLumar Windshield


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Guest scottydosnntkno

"While other films employ very dark tinting to achieve similar levels of heat rejection, LLumar's windscreen film color is light enough to meet visible-light transmission laws worldwide. Its optical clarity and low reflectivity will not interfere with night driving."

regardless of how dark it is, isn't it !llegal in every state to have any sort of film on your windshield?

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Guest GreenCove
Nevermind legality, what about the "give" the W/S is supposed to have in a crash? Not too safe in my humble opinion.

never thought of that ... makes sense

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Guest scottydosnntkno
Nevermind legality, what about the "give" the W/S is supposed to have in a crash? Not too safe in my humble opinion.

would it affect it as much going outwards(airbag) as inwards like trying to break a window? Seems like trying to expand the space within the glass pieces wouldn't be as bad as compressing the space.

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Glass manufacturers are already looking to incorporate these properties into windshields

The Future

Despite the recent downturn in the automotive industry, long-term prospects are more optimistic. Motor vehicle production markets will be stronger than in recent years, raising demand for flat glass products such as windshields. Windshields are also increasing in size in order to accommodate newer aerodynamic designs, and thus the use of glass is increasing relative to the total surface area of vehicles. (In fact, some models are incorporating glass roofs as well.)

Such increase in glass area, in turn, has a negative impact on comfort systems, namely air conditioners, which must be able to adjust the higher interior temperatures to a comfortable level. To avoid having to use larger air conditioning systems, new glass compositions, coated glasses, and aftermarket films are being evaluated. These include angle-selective glazings that reject high-angle sun, and optical switching films that actively or passively change transmittance properties.

One recently developed film, a polymer multilayer solar control film, can also act as a deicing device. The coated plastic substrate simply replaces the laminated plastic film in conventional windshields. The film can be made in any color and can transmit up to 90 percent of the visible light. Another coating is a glaze that consists of silver coating used in combination with other metal oxide layers. This glaze can reject up to 60 percent of the total solar energy, reducing the infrared energy by 56 percent.

In addition, new types of laminated-glass windshields are being researched. A bi-layer windshield has been developed that only requires one outer sheet of glass, .08 to .16 of an inch (2-4 millimeters) thick, joined to a .254 of an inch (1 millimeter) sheet of polyurethane. The polyurethane sheet consists of two layers, one having high absorption properties and the other high surface resistance. Unique features of this bi-layer windshield include ultraviolet resistance, self-healing of scratches, weight savings, more complex shapes, increased safety due to retention of glass splinters, and anti-fog capability.

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Nevermind legality, what about the "give" the W/S is supposed to have in a crash? Not too safe in my humble opinion.

would it affect it as much going outwards(airbag) as inwards like trying to break a window? Seems like trying to expand the space within the glass pieces wouldn't be as bad as compressing the space.

The current requirement of a windshield......

" In many countries, including the U.S., auto windshields are required by law to be made of laminated glass. Laminated glass can bend slightly under impact and is less likely to shatter than normal safety glass. This quality reduces the risk of injury to the automobile's passengers."

Does that answer your question?

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