🧲 Spin-Off Blog 1: Do Magnetic Signs Work in Winter?
- Steve Griffin
- Oct 7
- 2 min read
Updated: Oct 8

Introduction
The British winter is tough on vehicles — heavy rain, grit, frost and ice. If you’re using magnetic signs for vehicles, you might wonder if they’ll hold up in bad weather. The good news? Yes, they do — but there are a few care tips you should know.
Do magnetic car door signs stay on in cold weather?
Yes ✅. Quality magnetic car door signs are designed to grip securely, even in frosty conditions. The magnetic pull isn’t affected by the temperature, so your signs won’t suddenly fall off when the temperature drops.
The only risk comes from dirt, grit, or ice getting trapped under the magnet. That’s why regular cleaning is essential in winter.
What about rain and road salt?
Magnetic signs for vans are waterproof and weatherproof, so rain won’t cause them to peel away. However, road salt can be an issue if it builds up behind the magnet. Salt crystals may scratch paintwork if left too long.
Quick tip 👉 remove and clean your signs more often during winter months — ideally once or twice a week.
Best maintenance tips for winter
To keep your magnetic advertising for cars working perfectly in winter:
✅ Remove and clean signs more frequently
✅ Wipe down both the magnet and the panel before refitting
✅ Store signs flat indoors overnight if possible
✅ Avoid leaving them on for weeks at a time without checking
A few minutes of care will keep your signs secure and your paintwork protected.
Learn more in our full guide to Magnetic Signs for Vans & Cars
Conclusion
Yes, magnetic signs for vehicles absolutely work in winter — provided you look after them. Keep them clean, store them flat, and they’ll serve you well through rain, wind, ice, and snow.
Order your custom magnetic signs today and trust Griffin Signs to supply durable, vehicle-grade magnets built for UK conditions.




Comments