It's a familiar frustration. You just spent $800 on new headlights at the shop. They look perfect: clear, bright, clean. Three years later, they're starting to yellow. Again. You feel cheated? Not really. That's just what polycarbonate does.
Same material, same problem
Your new headlights are made from the exact same plastic as the ones they replaced. Polycarbonate. And polycarbonate reacts to UV rays. Not in 20 years, not in 10. The moment your car sits in the sun, the breakdown starts. Slowly, but it starts.
The factory applies a UV-protective coating before the headlights ever reach your car. That coating is what gives you 3 to 5 years of clarity. But it wears down, especially in Quebec, where road salt and abrasives go at it for five months a year. We get into the full mechanism in our article on polycarbonate versus glass.
The replace-yellow-replace cycle
It's a costly loop. You replace your headlights for $500 to $1,800. They yellow in 3 to 5 years. You replace them again. Over 15 years of owning a car, that can easily add up to $3,000 or more, just because plastic does what plastic does.
It's a bit like painting a wooden deck without a protective stain. Looks good for a year, then the wood grays and you start from scratch. The problem isn't the wood. It's the lack of lasting protection.
How to break the cycle
The fix is to restore rather than replace, then apply a quality protective coating after each restoration. A professional restoration removes the oxidized layer and gets you back to a clean surface. A ceramic or UV-protective coating then shields the plastic for 2 to 3 years. When the protection starts to fade, you restore again. The cost is a fraction of replacement.
Over 15 years, you could go from $3,000 in replacements down to maybe $400 to $600 in restorations, and your headlights stay clear the whole time. We lay out the full comparison in our article on restoration versus replacement.
If you just replaced your headlights
Good news: right now is the best time to protect them. Your headlights are new and clear. Get a ceramic or UV-protective coating on them while they're still in perfect shape. You'll extend their clarity by years.
Think of it like putting a screen protector on a new phone the day you buy it. Not after the screen is already scratched.
Get in touch with us at pharesautomobile.ca to have a protective coating applied to your new headlights. We service Montreal and the South Shore.
