Vehicle Magnet Best Practices: Installation, Care and Safety

Vehicle magnets are a versatile and cost-effective signage solution when properly installed and maintained. Following recommended best practices ensures reliable performance, protects vehicle surfaces and reduces the risk of magnet loss.

Choosing the Right Thickness

For most vehicle applications, 30 mil magnetic sheeting is considered standard. Larger graphics or high wind exposure areas may require thicker material such as 40 mil or 60 mil.

See our flexible magnet thickness guide for a detailed comparison.

Proper Installation

• Apply only to clean, flat steel surfaces
• Ensure the entire magnet surface is in full contact
• Avoid placement over body lines, curves or trim
• Do not apply over rust, dents or damaged paint
• Confirm the vehicle panel is steel (not aluminum or composite)

Preventing Wind Lift

Wind pressure increases significantly at highway speeds. To reduce lift risk:

• Use appropriate thickness for the magnet size
• Ensure full surface contact
• Remove and reposition magnets periodically
• Avoid automatic car washes

Larger magnets should be evaluated carefully for high-speed applications.

Cleaning and Maintenance

• Remove magnets weekly to clean both magnet and vehicle surface
• Wipe dry before reapplying
• Store flat when not in use
• Avoid folding or creasing

Regular cleaning prevents moisture buildup and protects vehicle paint.

Temperature Considerations

Extreme heat may soften magnetic material, while extreme cold may reduce flexibility. Avoid installing magnets on freshly painted surfaces and allow new paint to fully cure before application.

Important Safety Notes

Vehicle magnets are temporary signage solutions. Improper installation, extreme weather or excessive speed may increase the risk of detachment.

Testing under real driving conditions is recommended before full deployment.

Explore Our Vehicle Magnet Solutions

Browse our Flexible Magnetic Sheeting or visit our flexible magnetic materials in Canada page for complete product options.

For application-specific recommendations, see our magnetic solutions for vehicle graphics & fleet page.