How to Tint Car Windows: DIY Guide

Remove Debris: Start by removing any stickers, adhesives, or decals from the windows. Use a razor blade if necessary, but be gentle to avoid scratching the glass.
Thorough Washing: Wash the windows using soapy water. It’s best to use a mild, non-abrasive soap to avoid damaging the window.
Focus on Corners: Pay special attention to the corners and edges of the windows, as these areas often accumulate the most dirt and grime.
Use a Squeegee: After washing, use a squeegee to remove the soapy water. This helps in avoiding streaks and ensures a clean surface.
Drying the Windows
Lint-Free Cloth: Dry the windows with a lint-free cloth. This type of cloth won’t leave any residue that could get trapped under the tint film.
Check for Moisture: Ensure that all moisture is removed, especially around the edges. Any remaining moisture can interfere with the adhesive on the tint film.

Use a Tape Measure: Measure the dimensions of each window carefully. It’s important to measure from edge to edge, including the curves and corners.
Record Measurements: Write down the measurements for each window. Double-check to avoid any errors.
Cutting the Film
Lay Out the Film: Unroll the tint film on a clean, flat surface larger than the window. Ensure the environment is dust-free to avoid contamination.
Mark the Film: Place the film against the outside of the window and cut a rough outline, leaving about one inch extra around all edges. This extra margin allows for precise adjustments during application.
Use a Sharp Blade: Use a sharp utility knife or razor blade for cutting. Dull blades can tear the film or create jagged edges.
Cut on a Safe Surface: Make sure you’re cutting on a surface that won’t be damaged by the blade, like a glass table or a specific cutting mat.
Refining the Cut
Trim for Precision: Once the rough cut is done, place the film on the inside of the window. Trim the edges for a perfect fit, ensuring the film covers the entire window without overlapping the window frame.
Consider Curves and Corners: Pay special attention to the shape of the window. Some windows have unique curves or angles that require careful trimming to match.

Wet the Window: Before applying the film, spray the inside of the window generously with soapy water. The water makes it easier to adjust the film once it’s on the window.
Peel the Film: Carefully peel the backing off the tint film to expose the adhesive side. It’s advisable to do this in a dust-free environment to prevent debris from sticking to the film.
Applying the Film
Position the Film: Starting from the bottom, gently place the adhesive side of the film against the window. The extra soapy water will allow you to slide and adjust the film into the perfect position.
Smooth Out the Film: Once the film is in place, use a squeegee to smooth it out. Start from the center and work your way outwards to push out any air bubbles and excess water. This step is crucial for a bubble-free finish.
Adjusting the Film
Trim Excess Film: If there’s any excess film overlapping the window frame, trim it carefully with a razor knife. It’s important to do this while the film is still wet and pliable.
Check for Bubbles: After trimming, go over the film with the squeegee again, checking for any air pockets or creases. If you find any, gently work them out to the edges.

Use a Sharp Blade: A sharp utility knife or razor blade is essential for precise cutting. Dull blades can tear the film or leave jagged edges.
Trimming Technique: Gently pull the film away from the window frame and trim the excess. Keep the blade at a slight angle to ensure a clean cut that is flush with the window frame.
Be Patient: Take your time with this step. Rushed or uneven cuts can ruin the appearance of your tint.
Heating the Film
Use a Heat Gun or Hair Dryer: A heat gun is ideal, but a hair dryer can also work. The heat helps the film adhere smoothly to the window and removes any remaining water or air bubbles.
Apply Heat Evenly: Move the heat source over the surface of the film in a constant, sweeping motion. Avoid overheating any area, as this can cause the film to warp or bubble.
Work Out Bubbles: As you apply heat, use the squeegee to gently work out any air bubbles or minor creases. Start from the center and move towards the edges.
Finalizing the Application
Inspect Your Work: After heating, inspect the window for any imperfections. If you find small bubbles or creases, you can usually smooth them out with a bit more heat and the squeegee.
Allow to Cool: Let the film cool and set for a few minutes. This process helps the adhesive bond fully with the glass.

Check for Imperfections: Once the film has cooled down, inspect each window carefully. Look for any small bubbles, creases, or areas where the film isn’t adhering properly.
Address Issues Immediately: If you find any imperfections, it’s easier to fix them now rather than later. Use a heat gun and squeegee to gently correct any issues.
Cleaning the Tinted Windows
Wait Before Cleaning: It’s important to wait a bit before cleaning the newly tinted windows. The adhesive needs time to dry, and cleaning too soon can cause the tint to shift or bubble.
Use Mild Cleaners: When it’s time to clean, use a soft cloth and a mild cleaning solution. Avoid ammonia-based cleaners as they can damage the tint.
Allowing the Tint to Cure
Curing Time: The curing process is when the adhesive fully sets and the film completely adheres to the window. This can take 1-4 days, depending on the climate and weather conditions.
Avoid Rolling Down Windows: During the curing period, avoid rolling down the windows. This can cause the tint to peel or get scratched.