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Keep the windows up and don’t roll them down for 3 to 5 days after fitting. Small water bubbles or a light haze are normal and dry out over 2 to 4 weeks. After that, clean the inside of the glass with an ammonia-free cleaner and a soft microfibre towel, and never use a blade or scourer on the film.
The first 3 to 5 days
The film is fitted with a mounting solution that needs to dry. Rolling the windows down too early can catch the edge of the film and lift it. Keep them up for 3 to 5 days, and leave the rear demister off for the same time.
The first 2 to 4 weeks
Small water bubbles, streaks or a slight haze are moisture still drying out between the film and the glass. They clear on their own over 2 to 4 weeks, sooner in warm, sunny weather. Don’t push them out with a finger or a card, as that can mark the film.
Bubbles that are still there after a month, or film that lifts at an edge, are worth showing to your installer.
Cleaning tinted windows
- Use an ammonia-free glass cleaner. Ammonia can break down the film over time.
- Use a soft, clean microfibre towel.
- Wipe gently. No blades, scrapers, scourers or abrasive pads on the film side.
- Clean the outside of the glass as normal. The film is on the inside.
ShieldLab microfibre towels are made for the job: see the ShieldLab range.
Everyday care
- Watch seatbelt buckles snapping back against the side windows.
- Keep sharp or heavy cargo away from the rear glass.
- Don’t stick labels, parking permits or suction mounts onto the film.
Register your warranty
Your installer lodges your Polyshield warranty, and you can check it any time by number plate on the Warranty page. Carbon ceramic carries 10 years and nano ceramic a lifetime warranty.
Register your warranty.
Have your invoice and the certificate details from your installer ready.
Related guides
Register your warranty.
Have your invoice and the certificate details from your installer ready.