Gripper Mats™ by Proper Design – Reusable Magnetic Sign Holder for Aluminum & Non-Magnetic Vehicles - Car, Pickup Truck, RV, Trailer, Taxi, Cab, Uber
Gripper Mats™ by Proper Design – Reusable Magnetic Sign Holder for Aluminum & Non-Magnetic Vehicles - Car, Pickup Truck, RV, Trailer, Taxi, Cab, Uber
Magnetic signs don’t stick to aluminum vehicles.
Gripper Mats™ solve that problem.
Gripper Mats™ by Proper Design allow you to use your existing magnetic signs on aluminum and other non-magnetic vehicle surfaces — without adhesive, without leaving residue, and without damaging paintwork.
They are fully reusable, never lose stickiness and allow your magnetic signs to be removed and reapplied as many times as you want.
Ideal for aluminium trucks, vans, and modern vehicles where car magnets won’t stick such as Tesla, Ford F150, Ford F350, Mercedes, Audi, BMW etc.
We fulfil orders quickly from stock held in the United States, United Kingdom and Canada, ensuring fast, fully tracked delivery for US, UK, and Canadian customers.
Backed by our 365-day warranty when purchased directly from Proper Design.
- Gripper Mats hold all magnetic signage safely to vehicles.
- Trusted by the US Coastguard in the harshest of conditions.
- Gripper Mats do not harm paintwork, glass or any other surface.
- Incredible, secure and safe hold due to our purposefully developed product.
- Gripper Mats are unique, thick, strong and long lasting.
- Over 10,000+ sold worldwide.
- Easy to use on all sign sizes. Use our calculator to work out how many you need. They can be cut to shape using household scissors if necessary.
- Fast, free shipping wherever you are in the world as we hold stock across the US, CA and UK.
How Many Gripper Mats™ Do I Need?
Different sized magnetic signs require different quantities of Gripper Mats™ to achieve a safe, secure hold.
Use the calculator below to work out exactly how many packs you need based on your sign’s size and the number of signs you’re using.
Step 1. Choose your unit of measurement:
Step 2. Enter your sign dimensions:
Step 3. Enter the number of signs you have at this size:
Used by the US Coastguard, trades, fleets & small businesses since 2016.

Why Magnetic Signs Don’t Stick to Aluminum Vehicles
Aluminum is non-magnetic, which means ordinary magnetic vehicle signs simply cannot grip to it. This is a widespread issue across many modern vehicles — especially pickup trucks, electric vehicles, and luxury models that rely on aluminum for weight reduction.
This commonly leads to:
- Signs falling off
- Wasted time and money
- Failed adhesive experiments
- Confusion about why magnets “suddenly stopped working”
Gripper Mats™ were created specifically to solve this problem.
The Gripper Mats™ Difference
Alternatives that try to "copy" our Gripper Mats™ technology, use inferior quality and thinner material. These are a false economy and sadly damage the brand we work so hard to uphold. Other methods of adding signage to your vehicle either involve using static cling which does not last as the static wears out or permanent vinyl decals. Neither of which have the many benefits that Gripper Mats™ offer.
Gripper Mats™ create a reliable bond between your vehicle and your existing magnetic sign, allowing secure attachment without damage, residue, or consumables — and without ever wearing out.
Key Benefits
-
Reusable magnetic sign solution
Remove and reapply your signs unlimited times. -
No adhesive required
Nothing to dry out or fail — ever. -
Never loses stickiness
Consistent performance every time. -
Won’t damage paintwork
No residue, no marks, no peeling paint. -
Weather resistant
Reliable in rain, heat, cold, and sun. -
Designed for real-world driving
Not just for positioning — for actual use.

Specifically Designed for Aluminum & Non-Magnetic Vehicles
Including Many Popular Pickup Trucks, EVs & Luxury Cars
Many modern vehicles use aluminum, plastic and composite body panels — which is why standard magnets won’t stick.

Ideal for Temporary & Removable Vehicle Signage
Gripper Mats™ are the top choice for:
- Pickup truck signage
- Contractor & tradesperson branding
- Temporary magnetic signs
- Small business vehicle signage
- Event & promotional signage
- Fleet vehicles requiring removable branding
Display signage when needed — remove it cleanly when you don’t.

Gripper Mats™ vs Adhesive Alternatives
Many online alternatives use adhesive — but adhesive is:
- Temperature-sensitive
- Short-lived
- Messy
- Likely to damage paint
- Often single-use
Gripper Mats™, by contrast, are a professional-grade, reusable solution.
| Feature | Gripper Mats™ | Adhesive Products |
|---|---|---|
| Works on aluminum vehicles |
✅ Yes |
⚠️ Sometimes |
| Reusable |
✅ Unlimited |
❌ Limited |
| Leaves residue |
❌ No |
❌ Often |
| Heat & weather resistant |
✅ Yes |
❌ Not reliably |
| Long-term value |
✅ High |
❌ Low |

365-Day Warranty
Every set of Gripper Mats™ purchased directly from Proper Design is backed by a 365-day warranty.
This ensures:
- Full support
- Guaranteed authenticity
- Premium performance
Warranty applies only to direct purchases made through Proper Design.
Designed by Proper Design, Delivered Worldwide
Gripper Mats™ are engineered by Proper Design, a UK-based company focused on practical, long-lasting problem-solving products.
We ship globally from fulfillment centers in the US, UK, and Canada, giving our customers — especially in the United States — fast, reliable delivery with no delays.
Frequently Asked Questions
Are Gripper Mats the same as Spider Mats?
No. Gripper Mats™ and Spider Mats are different products designed for different purposes. While both are used with magnetic signs, they work in completely different ways and are used in different situations.
What are Gripper Mats used for?
Gripper Mats™ are designed to allow magnetic signs to hold securely to vehicles made from aluminum, plastic or other non-magnetic materials.
Many modern vehicles use aluminum body panels, which means magnetic car signs will not stick directly to the vehicle. Gripper Mats solve this problem by creating a specialist grip surface between the magnetic sign and the vehicle panel.
This allows magnetic car signs, taxi signs and business vehicle magnets to be used on vehicles where magnets alone would not work.
What are Spider Mats used for?
Spider Mats are typically used under magnetic signs on steel vehicle panels. Their purpose is usually to protect the paintwork and allow airflow behind the magnet.
They are not designed to help magnets stick to non-magnetic surfaces.
Can Spider Mats make magnets stick to aluminum vehicles?
No. Spider Mats do not make magnetic signs stick to aluminum vehicles.
Aluminum is non-magnetic, which means magnets cannot attach to it directly. Products like Gripper Mats™ are specifically designed to solve this problem by allowing magnetic signs to grip securely to non-magnetic vehicle panels.
When should you use Gripper Mats?
Gripper Mats are useful when you want to use magnetic vehicle signs on vehicles where magnets normally will not stick, including:
-
Aluminum vehicles
-
Plastic vehicle panels
-
Composite body panels
-
Other non-magnetic vehicle surfaces
They are commonly used for magnetic taxi signs, business vehicle signage and temporary car advertising.
Why do magnetic signs not stick to some vehicles?
Many modern cars and trucks now use aluminum body panels instead of steel to reduce weight and improve fuel efficiency.
Because aluminum is not magnetic, magnetic car signs cannot attach directly to these vehicles without a product designed to help them grip.
What is the difference between Gripper Mats and Spider Mats?
The main difference is what problem they solve.
| Product | Purpose |
|---|---|
| Gripper Mats™ | Allow magnetic signs to hold to aluminum and non-magnetic vehicles |
| Spider Mats | Protect paintwork when magnets are used on steel vehicles |
They are designed for different vehicle types and different situations.
Couldn't load pickup availability
Excellent product. They are actually difficult to take off but if you do it every day like I do you quickly get used to it. Glad I was able to keep using my magnetics.
Great product.
Good. Working well.
These gripper mats are brilliant. I had to find a way to stick my taxi signage on before the next work day after finding out that my new Audi was aluminium. Proper Design delivered these lightning fast and the mats are amazing. Thanks!
Very disappointed. I lost my magnetic sign after using these mats. No I didn’t follow the instructions and wash and dry them every time but I was running late and the mats still felt sticky. However, the magnet flew off on the motorway so I couldn’t get it. Very annoying.

Frequently Asked Questions
Is my vehicle made of non-magnetic material (aluminum, plastic, composite)?
This list is not extensive but below are some common vehicles that are non-magnetic.
Pickup Trucks
- Ford F-150 (full aluminum body from 2015 onward)
- Ford Super Duty models (F-250, F-350 aluminium body panels)
- Ford F-150 Lightning (electric aluminum-body pickup)
These trucks are extremely popular for contractors, tradespeople, mobile businesses, and fleets — and all suffer from the magnetic-sign problem.
Electric Vehicles
- Tesla Model S (aluminum body)
- Tesla Model X
- Tesla Model 3
- Tesla Model Y
EV owners frequently report that magnetic signs no longer work — because of the surface material, not the magnet itself.
Luxury & Mixed-Material Vehicles
- Audi A8 (aluminum spaceframe body)
- Audi TT (aluminum panels depending on model year)
- BMW 5 Series (G30 and newer) (aluminum doors, bonnet, boot lid, structural components)
These vehicles use aluminum extensively for weight savings — and magnets simply won’t hold.
Why don’t magnetic signs stick to my Ford F-150 / Tesla / BMW / Audi?
Because these vehicles use aluminum body panels, which are not magnetic.
Will Gripper Mats™ work on my Tesla?
Yes — Gripper Mats™ are designed specifically for aluminum and non-magnetic surfaces.
Will they damage paint?
No. They leave no residue and no marks.
Do they lose stickiness?
No — Gripper Mats™ never lose stickiness as long as the care instructions are followed. Plus, they are backed by our 365 day warranty when bought direct.
What types of vehicle can Gripper Mats be used on?
- Aluminum vans
- Pickup trucks
- Trailers
- Motorhomes and RVs
- Non-magnetic commercial vehicles
Is my vehicle one of the common aluminum bodied vehicles?
If your vehicle is one of the following, standard magnets may not work:
Pickup Trucks
- Ford F-150
- Ford Super Duty (F-250, F-350 etc.)
- Ford F-150 Lightning
Electric Vehicles
- Tesla Model S
- Tesla Model X
- Tesla Model 3
- Tesla Model Y
Luxury & Performance Vehicles
- Audi A8
- Audi TT
- BMW 5 Series (G30 onward)
Commercial & Utility
- Aluminum cargo vans
- Aluminum trailers
- Aluminum service bodies
Gripper Mats™ work based on surface material, not brand — but these aluminum-heavy vehicles are some of the most common cases where standard magnets fail.
Excellent product. They are actually difficult to take off but if you do it every day like I do you quickly get used to it. Glad I was able to keep using my magnetics.
Great product.
Good. Working well.
These gripper mats are brilliant. I had to find a way to stick my taxi signage on before the next work day after finding out that my new Audi was aluminium. Proper Design delivered these lightning fast and the mats are amazing. Thanks!
Very disappointed. I lost my magnetic sign after using these mats. No I didn’t follow the instructions and wash and dry them every time but I was running late and the mats still felt sticky. However, the magnet flew off on the motorway so I couldn’t get it. Very annoying.