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| FAQs About
Fade Protection About 40% of all fading is caused by ultraviolet (UV) light, 25% by visible light, 25% by heat, and 10% by humidity, chemical vapours, age of material, dye stability, etc. Since UV light rays bounce off solid objects; buildings, trees, pavement, etc., regardless of which direction your windows face, you may have a fading problem. Natural fibres like silk and wool are less fade-resistant than synthetic fibres. Antiques, tapestries, rugs, etc. have relatively unstable dyes, and will fade quickly. Fluorescent dyes are less colour-stable than non-fluorescent dyes.
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How Can I Reduce Fading? Reduce the Amount of UV Light Special absorbers in LLumar and VISTA films block up to 99% of the UV-C (light with a wavelength of between 320 and 380 nano-metres -- nm). UV-B (between 280 and 320 nm) is blocked by glass. UV-A (below 280) nm is blocked by the Earth's ozone layer. |
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Reduce
the Amount of Heat |
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| Ordinary clear window glass blocks some of the solar heat:* single-glazed windows with 1/8-inch glass will stop 13% single-glazed windows with 1/4-inch glass will stop 17% Source: "Window Film Training Guide" published by the Association of Industrial Metallizers Coaters and Laminators (AIMCAL) |
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| Fade
Protection Charts |
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Here are detailed charts showing the amount of fade reduction that can be achieved with various LLumar and VISTA window films. If you don't like charts, here's the conclusions that we reached, based on our calculations. Regardless of which film you choose, you will get some reduction in fading because:
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| LLumar
Charts |
Vista Charts | ||||