There are numerous benefits to applying solar films on the glass surfaces of buildings. These films help retain cool air in summer and keep warmth in winter, effectively reducing overheating inside the rooms. The energy savings, and consequently, the reduction in utility bills, are immediate. Moreover, solar control films offer excellent protection against harmful ultraviolet rays, safeguarding both your skin and furniture, carpets, and other interior elements. This can be achieved without major construction work, expensive costs, or the need to replace windows—just by selecting the right solar film for your glass and applying it correctly. The process is not complicated at all. Here’s a complete guide to applying solar window films without making mistakes, with clear step-by-step instructions.
What You Need to Apply Solar Window Films
What do you need to have on hand when applying solar window films? In addition to a sufficient quantity of solar control film (i.e., a roll containing enough length for the area), you’ll also need:
- A soft and clean cloth for cleaning
- A squeegee for cleaning
- A hard rubber spatula
- A water sprayer
- A metal ruler
- A metal square
- A utility knife with a steel blade
- A small spatula
- Wiping paper
Conditions for Application: Requirements
Before applying solar window films, it's important to ensure that the conditions are suitable. First, the glass surfaces must be perfectly smooth and in good condition, as well as clean. Second, the temperature should not be below 10 degrees Celsius. It’s also preferable to choose a calm day without strong winds or air currents, which could make the application difficult and potentially introduce dust between the glass and the film.
Before Applying Solar Control Films: Cleaning the Glass
As mentioned, a clean surface is essential. The glass should be cleaned using a detergent that leaves no residue, such as lanolin or wax. Also, the cloth used for cleaning and drying should not leave behind fibers. To ensure the glass is completely clean and free of contaminants, after thorough cleaning, use a squeegee, paying special attention to corners and edges near the window frames. At this point, you're ready to apply the solar window films!
Step-by-Step Instructions for Applying Solar Window Films
Here's how to apply solar window films step by step:
- The previously cleaned glass should be lightly and evenly wetted using the water sprayer;
- You can now place the film, but hold it upside down, keeping the liner facing you; thanks to the water on the glass, the film will stay "attached" to the surface;
- Now, remove the protective liner;
- You now have a film ready to be activated: spray it generously with water to activate the adhesive (in fact, the water helps remove the water-soluble layer that protects the adhesive). After about two minutes, the adhesive will be fully exposed and ready for use;
- Turn the solar film over so that the adhesive side is placed against the glass, then spray it generously;
- Adjust the position of the film, which will be easily repositionable due to the water underneath;
- To ensure perfect adhesion, start by squeegeeing the film to spread it evenly (to make the squeegee glide smoothly, you can add a little water mixed with a drop of neutral soap);
- At this point, you can trim the film using a ruler, square, and utility knife, ensuring there's a 2mm gap between the film and the window frame;
- Finally, use the small spatula and wiping paper to press the edges firmly into place.
The application of the solar window film is now complete. By following these steps, you can install these protective films on all the glass surfaces and windows of your building.
After Applying the Solar Window Films
It's important to note that the adhesive on the window films takes approximately 15 days to fully cure. Therefore, it's best to wait at least two weeks before cleaning the glass, to avoid damaging the protective layer.
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