Our founding installer is now open in Salisbury, SA · More studios on the way
The tint that stops the most heat is the one with the highest TSER, not the darkest one. About half of the sun’s energy is infrared, which you feel as heat, and ceramic films block it even in light shades. A light nano ceramic film can keep a car as cool as a much darker film, while staying legal on the front windows.
Darker isn't always cooler
A darker film blocks more visible light, which cuts glare and some heat. But visible light is only part of the sun’s energy. Infrared makes up roughly half, and a cheap dark film can still let much of it through.
Compare TSER
TSER (Total Solar Energy Rejected) counts everything the film keeps out: UV, visible light and infrared. It is the best single figure for comparing heat. IRR figures measured at one wavelength often look higher, so use them as a supporting number. See What do window tint specs mean?
Why ceramic works in light shades
Nano ceramic particles block infrared heat while letting visible light through. That means you can choose a light shade for the front side windows, where the law requires at least 35% light, and still feel a real difference in the cabin.
Getting the most from your tint
- Tint every side window and the rear window, not just the back seats.
- Choose nano ceramic for the front side windows, where shades must stay light.
- Use a sunshade on the windscreen when parked, as it can only have a top band.
- Park in the shade where you can. Tint slows heat build-up, it doesn’t stop it.
Talk to a Polyshield installer.
Get advice on the right film and shade for your car, and a quote.
Related guides
Talk to a Polyshield installer.
Get advice on the right film and shade for your car, and a quote.