Window tint, explained for Seattle drivers
Straight answers about automotive window tint in the Pacific Northwest
No sales pitch, no prices. Just clear answers about what tint does, what Washington law allows, and how to care for it.
What is Ceramic IR window tint?
Ceramic IR window tint is a thin film applied to the inside of your car's windows. Its non-metallic ceramic construction blocks 99.9% of UV and rejects up to 98% of infrared energy on the shades APC stocks, so the cabin stays cooler, glare drops and your interior is protected, all without interfering with your phone, GPS or toll pass. The shade you pick only changes how dark it looks, not how well it protects.
Who is behind this site?
Auto Tint Seattle is published by APC Auto Spa. APC Auto Spa is a certified installer for many leading brands, including Ceramic Pro and STEK. APC has shops in Tukwila and Monroe. We built this site to answer the questions Seattle drivers actually ask, honestly, including where tint falls short. Read more about us.
All questions
- What is ceramic IR window tint, and how is it different from cheaper tint?
- How dark can you legally tint your windows in Washington?
- 15%, 25%, 35% or 70%: which tint percentage should I choose?
- How do you match factory privacy glass on the front windows?
- Window tint packages: Two to Match, Standard and Large
- How long does window tint take?
- When can I roll my windows down after tint?
- How is window tint installed? Does it go on the inside?
- What does a lifetime tint warranty cover?
- How do you clean tinted windows?
- Can you tint a windshield in Washington?
- Does tint interfere with cameras, sensors or phone signal?
- Can you tint a Tesla?
- Can you tint a sunroof or glass roof?
- Is window tint worth it in Seattle's gray weather?
- Can you remove old, purple or bubbling tint?
- Is factory privacy glass the same as window tint?
- Can you tint over rear defroster lines?
- How long does Ceramic IR window tint last?
Frequently asked questions
- What is Ceramic IR window tint, in plain terms?
- A thin, non-metallic film on the inside of your windows that blocks 99.9% of UV and rejects up to 98% of infrared heat, without interfering with your phone or GPS.
- How dark can I legally tint my front windows in Washington?
- Washington law sets the limit for front side windows at 24% visible light transmission on every vehicle.
- How long do I keep my windows up after tint?
- 2 to 5 days, depending on temperature and moisture. Cooler, wetter weather can take longer.
Reviewed by Heather Humphrey, co-owner of APC Auto Spa ยท Last updated October 2026
Heather leads customer education and training at APC's Tukwila and Monroe shops.