Louie Panayi • Yes, you can tint a windshield with ceramic film, and it's one of the biggest comfort upgrades you can make: a light film cuts the heat and UV coming through the largest piece of glass on the car without making it noticeably darker. We do windshields at 35% or lighter, never darker. Before you do it, know the law (below) and what to expect while it cures.
Why Tint Your Windshield?
Your windshield is the largest piece of glass on your vehicle and it's directly in your line of sight all day. Even if you have every other window tinted, you're still getting blasted with heat and UV rays through the windshield. Adding ceramic film to the windshield completes the package.
The benefits are immediately noticeable. The cabin temperature drops significantly, especially on hot summer days. The glare reduction makes driving more comfortable and less fatiguing. And the UV protection matters more on the windshield than anywhere else because your face, arms, and hands are exposed to direct sunlight through that glass every time you drive.
Clear Windshield Tint: What Shade Should You Use?
Windshield tint is different from side window tint. You don't want to go dark on a windshield. Most customers go with a very light ceramic film, usually in the 70% to 80% visible light transmission (VLT) range. At that level, you can barely see the tint from the outside, but you can absolutely feel the heat rejection and UV protection.
The ceramic technology in films like XPEL Prime XR Plus is what makes this possible. The heat rejection comes from the ceramic particles in the film, not from darkness. So you can run a nearly clear film on your windshield and still block a massive amount of heat and nearly all UV rays.
Is Windshield Tint Legal in Indiana?
Indiana law allows tint only across the top of the windshield, down to the AS-1 line marked near the top of the glass, so a strip there is legal and a full windshield film is not (see Indiana's tint law). Many drivers still choose a very light ceramic film on the whole windshield for the heat and UV it blocks; that choice is yours, and we keep it at 35% or lighter for safety. Illinois has its own rules (Illinois's tint law).
We can't sign off on what's legal for you, and we never promise you won't be stopped. If you'd rather stay strictly within the law, the windshield strip is the legal option, and a light film on the side windows does most of the work.
What About the Curing Process?
Here's the one thing to be prepared for: windshield tint looks rough while it's curing. Because you're looking through the windshield constantly, you'll notice every water pocket and bit of haze much more than you would on the side windows. This is completely normal and temporary.
Give it the full 7 to 14 days to cure. The water pockets will shrink and disappear as the moisture evaporates. In the winter, it may take longer. Don't let the curing appearance worry you. Once it's fully dry, the windshield will look crystal clear.
Does It Affect Visibility at Night?
A 70% or 80% VLT ceramic film lets most of the light through, and most customers tell us they forget the tint is even there after a day or two. It does cut some light, so if you drive a lot at night or on unlit roads, tell us and we'll talk through the lightest option. Many drivers find the glare reduction from oncoming headlights makes night driving more comfortable.
Can Any Shop Do It?
Windshield tint installation requires more skill than side windows. The windshield is curved, it's large, and there's no room for error since it's directly in your line of sight. Any imperfections, bubbles, or debris in the film will be immediately noticeable. This is a job you want done by an experienced installer.
At Car Teks, we've installed windshield tint on thousands of vehicles. If you want the heat rejection and UV protection of a tinted windshield done right, schedule with us and we'll take care of it.
