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  1. I have only used Suntek's Exterior films in recent years and not came across versions with CAP-sheets. However, I heard from peers describing what @smartie2shoes shared.
  2. Thanks for sharing Tom, please kindly allow me to rephrase my questions. I was told that reputable exterior films require a layer of CAP-sheet to be removed from the film, after it is applied to the glass. Example: Step 1: Remove Liner Step 2. Apply Film to glass Step 3. Remove Cap-Sheet. Is this true?
  3. Durability is weaker in the regions shaded yellow, orange & red. Technically, the same Windshield Protection Film can last longer in Northern Europe, Japan, US and Canada. Science doesn't lie.
  4. Happy New Year Dave! Please enlighten me, is it true that good exterior window films are structured like this? ____________________ Cap Sheet --------------------------------- Exterior Film --------------------------------- Liner ---------------------------------
  5. Yes sir, I tested several in recent years and it has been frustrating.
  6. That company is being honest. WPF can't last for many years as the windshield wipers will create minor scratches on SR and trigger the disintegration.
  7. Legality and driving safety will be an issue.
  8. Are you refering to 3M Dichroic Films? The reflection will look different on different glass, in different angles or different times of the day
  9. FLUORESCENT LIGHTING IRIDESCENCE ON WINDOW FILMS The iridescent phenomenon on window films under fluorescent lightings is commonly observed on window films with treated surfaces, for purposes including, but not limited to scratch protection, anti-reflection, anti-bacteria and/or visible light reduction etc. Varying, but less consistent, degree of iridescence can also be observed in non-fluorescent lightings. Observation & Cause Light rays appear to be bent (refracted) on the window film surface, creating a colorful rainbow or oil-slick appearance on thin films. T8 Lamps, Fluorescent tubes/lamp generates the strongest effect. The wavelength of these light sources either darkens (distorting the light rays) or brightens (overlapping the distorted light rays) the surface of the window films. Common Reference Names: • Iridescent Effect • Rainbow Effect • Thin Film Interference Please refer to enclosed reading materials for detailed explanation (Scientific Reference: Thin Film Interference) Primary Factors Affecting The Level Of Light Reflection/Refraction • Portion of Installed Film Like an oil-slick, some portion of the film can exhibit a stronger or weaker iridescent effect; it is possible to observe significant difference of the iridescence if “back-to-back” tints are not used by window panes of the same facing. • Viewing Angle of User Incident light is distorted at varying degrees when viewed from different angles; users will usually observe changing level of iridescence as they walk from the left to right of the tinted glass. • Distance from Light Source The positions, locations and quantity of the lightings affect the angle of incident light entering the film, which determines the reflection and refraction of light rays visible to the human eye; Iridescent on first glass panel can be different from the last on the same stretch of wall.
  10. Given the reflection, I believe it could be Suntek's Spectra Grey PS
  11. Good evening, We have a Japanese film of VLT 70% with high heat reduction Please let me know if the performance specifications are suitable. Thanks!
  12. 11. Getting the Design on Decorative Films Decorative films offers one of the highest durability among the products in our industry. There are two primarily techniques to get that design or repeat-pattern on the films: Electro-etched Surfaces Electro-etching on polymer surface is a manufacturing technique that was first-developed for other industries. The original-intent was to convert certain areas of an hydrophobic plastic surface to hydrophilic. This facilities the coating of micro-electronics electro-plating, spray-painting or surface-coatings on the electro-etched plastic surface. Visually, a transparent electro-etched surface will appear matte-white after the process; creating an avenue to create uniform designs on clear polyester. Electro-etched surfaces are very durable and provide certain level of resistance against solvents (for a reasonable time-frame), as shown in the photo on left Printed Surfaces For years, small-scale inkjet printers allow the printing of any designs on films for decorative purposes. Most decorative window films adopt on this printing-technology and apply the weatherable ink on the UV-resistance adhesive between the the window film and glass. As shown in the photo on left, the printed designs of decorative films can only be removed by solvents after the film is removed from the glass.
  13. 10. Dual-Reflective Window Films as Cost-Effective Energy-Saving Solution for Home & Offices Glass as a building material, in place of concrete walls has become popular in recent years due to its aesthetic appeal, and its capacity to provide a feel of open space. However, according to the 2012 International Energy Conservation Code, the fenestration area recommended to be limited to 40% of the wall area, because window panes cause higher solar heat gain in buildings. Energy consumption in building is particularly high due to the air-conditioning requirements during hot summer. Today, technological advancement is giving home owners and offices an energy-saving solution for retrofitting their windows. Cooling costs in summer months can be reduced, as Dual-Reflective window films greatly reduce the amount of heat entering through the windows by significantly minimizing the solar heat gain coefficient (SHGC) of glazing systems. Illustrative Example: Film Models Maxpro Dual-Reflective 5 Maxpro Dual-Reflective 15 Maxpro Dual-Reflective 25 Maxpro Dual-Reflective 35 Visible Light Transmitted 8% 14% 27% 38% Visible Light Reflected-Exterior 56% 48% 27% 13% Visible Light Reflected-Interior 15% 21% 14% 8% Glare Reduction 91% 84% 70% 58% Solar Heat Gain Coefficient 0.20 0.25 0.40 0.55 Total Solar Energy Rejection 80% 75% 60% 45% Ultraviolet Rejection >99% >99% >99% >99% Dual-Reflective Window Films, as with the above example, offers an affordable solution for higher heat reduction and lower interior reflectance. It is a dry-adhesive product with superior durability; translating to long-term cost-savings.