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Q1. Doesn't the glass become opaque?

A. When the carboxyl group COOH is abundant in polyester film, reaction with moisture in the environment causes hydrolysis, which leads corrosion and cloudiness. Our film contains less than half the quantity of COOH compared with other companies. It is not an exaggeration to say that there will be no corrosion and cloudiness.

Q2. Isn't the film vulnerable to fire?

A. The film has passed a fuel test performed by SGS, an American authority, and certified with a high level of success. After the film is installed to the window, it does not burn or shrink even when lighter flame is held close by.

Q3. Is the film immediately effective after applying it?

A. It takes time for the film to completely stick to the window after it has been installed. A solvent is used to apply the film, in order to make the film float on the glass. The surplus moisture is removed during the installation process, but some moisture inevitably remains between the film and the glass. The time it takes for the adhesive bonding to have enough strength is called the curing period. Within this period the bonding strength keeps increasing. The curing period of LG 200 - 440μm is approximately 1 - 2 months. Even if there is cloudiness directly after applying the film, during the curing period the moisture will evaporate, and the cloudiness will disappear.

Q4. Can't the glass with the film be cut with a glass cutter from the outside?

A. Even when the glass is cut with a glass cutter, because the film is applied to the inside surface of the glass, it won't break even if the glass is pulled hard.

Q5. How long does it last?

A. We have a 10-year-product gurantee. It lasts 30 years so long as the glass doesn't break.

Q6. Where is the film produced?

A. We had analyzed the films from many countries all round, and chose the most excellent film, and brought them out under the brand name of Life Guard.

Q7. Is it different from vinyl?

A. Polyester, or more formally PET (polyethylene terephthalate), is fundamentally different from vinyl chloride. PET doesn't produce harmful gas when it burns and can be treated together with household trash.

Q8. Can the film be applied to patterned glass?

A. The film can't be applied to the textured side of the glass. It can be applied when the glass is taken from the sash and reversed so that its smooth surface comes to the inside. However, our LGSP Film can be applied to patterned glass.

Q9. Is wired glass not sufficient?

A. Wired glass prevents the spread of fire, but there is absolutely no crime prevention ability. Although the glass breaks easily, it won't fall down, so that you can say it is rather easy to break in. If the glass is heated with a burner up to 1300 Ž, it doesn't burn but only the heated part melts. Even if it melts, no toxic fumes are released.

Q10. How about security glass or laminated glass?

A. Now glass manufacturers are putting an effort into developing laminated glass, also called as security glass. Security glass has an interlayer sandwiched between two or more layers of glass. When you hit the glass from the outside with a baseball bat or something similar, it will not create a hole, but glass fragments scatter to the inside. Additionally, it will cost about 40,000 yen/m2, so that it may still be a little expensive. For a new building it is a good option, but replacing existing windows can't be done easily, and if the effect is the same as simply applying a film, shouldn't that be the choice?

Q11. The film is applied on the inside, does it prevent condensation?

A. Condensation will always occur due to the temperature difference between the outside and the inside. When the water sits on the surface of the film, please wipe it clean in the normal way.

Q12. I use the service of a security company, do I need security film?

A. A certain crime prevention analyst commented on television that "It is too late when the security company comes. Security is necessary because you want to prevent burglars from trespassing into your house. A good lock and security window film are necessary." Additionally, nowadays burglars target houses which are protected by a security company, because the security company represents the presence of properties that are worth enough to protect. They check beforehand how long they can stay inside, and finish their work in approximately 10 minutes. When the guard arrives, you may have lost what you wanted to protect.

Q13. Please tell me the cost difference between hiring a security company and using security window film.

A. In the case of hiring a security company, there is a charge for installing the security equipment and sensors. In addition a monthly fee of around 20,000 yen must be paid continually. For Life Guard Film, only the installation cost needs to be paid, and there is absolutely no cost after that.

Q14. How tough is the Life Guard Window Film?

A. As for Life Guard's strongest 440ƒÊm film, it was shown that the film was strong enough to actually stop a bullet in a live bullet test. In addition, regarding the 200ƒÊm film used in average homes, its strength is proven with tests which include hitting it with a baseball bat etc. Various glass safety standards are established by the well-known institute specialized in the testing of glazing materials' performances.

Q15. What is the thin film good for?

A. The 25ƒÊm - 100ƒÊm films are scattering prevention films, and the films of 200ƒÊm - 400ƒÊm are for security use. The thin films are to prevent glass from scattering in the event of natural disasters such as an earthquake. In other words, they are not for crime prevention.

Q16. After how many years is it necessary to renew the film?

A. Thin film will degrade in about 5 years, but Life Guard Films are able to retain their strength until the glass breaks. Reinstallation is not needed till then.

Q17. Is it safe when a child or a drunkard collides with a glass window?

A. Naturally, in houses, schools, and hospitals, and also places where people gather, you can see windows everywhere, so that Life Guard Films are necessary. When colliding with a window just results in a bump, it wouldn't be much of a problem, but when the window glass breaks and someone gets injured, it becomes a serious trouble. For this reason, you may think that safety window films are necessities for liquor shops and the rest.

Q18. Can the film really block more than 99% of ultraviolet (UV) radiation?

A. Most window film companies infuse UV inhibitors into the adhesive part of the film, not into the film itself. Compared to UV inhibitors added into the structure of film itself, these kind of inhibitors have very low durability. Life Guard Films have the UV inhibitors added to the structure of the films, and even after being exposed for 2,000 hours in a xenon accelerating test room, 99% of the UV radiation was blocked. Although it actually depends on where to install a film, but this test is assumed to be equivalent to approximately 3 - 5 years exposure in a standard environment. Even after the product of other companies have lost their ultraviolet ray prevention effect, Life Guard Films will still be effective.

Q19. How much does it cost?

A. The price is different depending on the thickness of a film. A rough approximation is about 200,000 - 300,000 yen for a house. The cost will change depending on where to install and the condition of the window glasses. To some extent, there is also a price difference between a house in a local district and a house in the city. The installation work contains everything, cutting the film, cleaning the windows, applying the film, up to the final finishing touches. We are able to apply about 20 m2 film in a day. We visit a customer in a team of two installers in a car.

Q20. How about robustness to thermal shock?

A. One technique for trespassing is to heat a glass with a burner, then quickly cool it by pouring water in order to break the glass. This is a conventional criminal technique amongst Japanese burglars and has increased more than 4 times compared to last year. Even when a common burner is used and the glass cracks, it is not possible to make a hole in the glass if Life Guard Security Film is applied to it because the film sticks closely to surface of the glass. However, when a powerful burner of 1,500 Ž or more is used, glass itself will melt, as do iron and aluminum, and in that case it is not possible to avoid a hole.

Q21. Isn't it sufficient to just apply the film to the key part of the window glass?

A. Although one method is to apply the film to a part of a glass where a crescent shaped lock is, it has limited effect. We recommend to install a film to the complete surface of a glass. To prevent the glass from scattering in case of, for example, an earthquake, we strongly recommend that the film is applied to the complete surface.

Q22. Can the film be applied to tempered glass?

A. Tempered glass scatters into small fragments when strong pressure is applied with a sharp tool so that it is not effective enough as a security measure. However, a film can protect the glass fragments from scattering in case the glass breaks.

Q23. Can the film be applied to double paned glass (Sealed Insulating Glass)?

A. If the surface of glass to which the film is applied is normal, there is no problem.

Q24. Can I install the film myself?

A. It is not impossible, but professional knowledge and skills are necessary. Within Life Guard Japan, the trained installers take responsibility for installing the films.

Q25. Can a color film be applied on top of Life Guard Film?

A. Yes. However, it is not possible to apply Life Guard Japan's film on top of a color film.

Q26. What is the best way to take care of windows with films applied to them?

A. Windows can be cleaned normally with water and a neutral detergent, but please do not use anything that may damage the film such as a metallic brush. In addition, please do not use volatile detergent such as detergents containing ammonia and chlorine.

Q27. When a film is applied, doesn't the glass crack because of thermal stress?

A. When a colored film (blocking ratio of 0.5 or less) is applied to a glass which receives sunlight directly, solar heat absorption of the glass increases, and the temperature difference between the glass periphery and the glass surface becomes large so that the probability of the glass cracking under thermal stress becomes higher. Our transparent window films, such as LG200 and LG440, will never cause cracking due to thermal stress. Additionally, LGE240 with a shielding ratio of 0.76 also will never cause thermal stress cracking of the glass.

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