Starlink Mini in magnetic mount on Toyota 300 LandCruiser 300 Series aluminium roof with mounting discs in Australian outback - magnetic mount on any surface solution by Dishy Mini Mounts

Magnetic Mount on Any Surface: The Aluminium, Composite and Fibreglass Fix for Starlink Mini

Your magnetic mount won't stick? Here's why - and the fix that works on every roof material.

Last updated: March 2026

You unbox your new magnetic Starlink Mini mount, climb up to stick it on the roof of your LandCruiser 300 Series, and... nothing. The magnets just slide off.

You haven't got a faulty mount. Your roof is aluminium.

This catches out more people than you'd think. A growing number of popular Australian touring vehicles now use aluminium roof panels to save weight - and magnets don't stick to aluminium. Most modern caravan roofs are aluminium or fibreglass composite too. It's not a design flaw; it's physics. Magnets only bond with ferrous (iron-containing) metals like steel. Aluminium, fibreglass, and composite materials contain no iron, so there's zero magnetic pull.

The good news: there's a simple, permanent fix that takes minutes and works on any surface.

Check Your Vehicle

Before buying any magnetic mount, you need to know what your roof is made of. Two ways to check:

The 30-Second Fridge Magnet Test

Grab a fridge magnet and stick it on your vehicle's roof.

If it grips firmly and holds without sliding, your roof is steel and a magnetic Starlink mount will work perfectly.

If it slides off or barely holds, your roof is aluminium (or another non-magnetic material) and you'll need mounting discs.

Test in several spots - some vehicles use mixed materials, with steel in certain panels and aluminium in others. For Starlink mounting purposes, you only care about the roof panel where you'll place the dish.

Use Our Vehicle Checker

Not sure what your vehicle is made of? Select your make and model below and it will tell you instantly whether you need mounting discs.

Not sure what your vehicle's roof is made of?

Select your make and model to find out instantly if you need mounting discs.

Check Your Vehicle →

The Fix: Stainless Mounting Discs

If your vehicle has a non-magnetic roof, you don't need to abandon magnetic mounting. Stainless Mounting Discs solve the problem permanently.

These are a set of four 70mm stainless steel discs that attach to your roof using industrial-grade 3M VHB (Very High Bond) tape. Once the discs are in place, the neodymium magnets in a Dishy Mini Mount grip the stainless steel exactly the same way they'd grip a steel roof.

How It Works

  1. Clean the roof surface thoroughly with isopropyl alcohol (supplied)
  2. Position the four mounting discs where you want your Starlink mount to sit
  3. Press each disc firmly and allow 24 hours for the VHB tape to reach full bond strength
  4. Mount your Starlink as normal - the magnets lock onto the stainless discs

The discs stay on your roof permanently. Your magnetic mount lifts on and off in seconds, just as it would on a steel-roofed vehicle. You get the full flexibility of magnetic mounting - reposition for signal, move between vehicles (if your other car is steel), or take the dish down for overnight security - with a reliable connection on any surface.

Will the Tape Damage My Paint?

3M VHB tape is specifically designed for automotive use. It bonds without damaging factory paint. If you ever need to remove the discs, 3M adhesive remover or a heat gun will release the tape cleanly. We've had discs on customer vehicles for over a year with no paint issues.

Which Vehicles Are Affected?

Here's a quick reference for the most popular Australian touring vehicles. This covers the vehicle's roof panel material and whether a magnetic Starlink mount will stick directly.

Confirmed Aluminium Roofs (Mounting Discs Required)

Toyota LandCruiser 300 Series (2021+) - Aluminium roof, bonnet, doors and front guards. This is the most common aluminium-roof vehicle in the Australian touring community. All variants affected: GX, GXL, VX, Sahara and GR Sport. Worth noting: the previous LandCruiser 200 Series (2007-2021) uses a steel roof, so if you're upgrading from a 200 to a 300, your magnetic mount that worked perfectly on the old vehicle won't stick to the new one.

Ford F-150 (2015+) - Full aluminium body panels including cab roof. RHD conversions now available in Australia through Walkinshaw.

Range Rover (modern models) - Aluminium monocoque body structure.

Land Rover Defender (2020+ and classic models) - Aluminium body panels. The classic Defender used aluminium too, going all the way back to the original 1948 Land Rover's post-war design when steel was in short supply. So both old and new Defenders are non-magnetic.

Confirmed Steel Roofs (Magnets Work Directly)

Toyota HiLux, Toyota LandCruiser 200 Series, Toyota LandCruiser 79 Series, Toyota Prado 150, Toyota Fortuner, Toyota RAV4, Ford Ranger, Ford Everest, Isuzu D-Max, Isuzu MU-X, Mitsubishi Triton, Mitsubishi Pajero Sport, Nissan Navara, Nissan X-Trail, Mazda BT-50, Volkswagen Amarok, GWM Cannon, Subaru Outback, Subaru Forester, Suzuki Jimny, Jeep Wrangler (hardtop), RAM 1500, Chevrolet Silverado 1500.

Note: if you have an aftermarket aluminium canopy on any of these vehicles, the canopy roof will be non-magnetic even though the cab roof is steel. You'll need mounting discs on the canopy.

Not Yet Confirmed (Do the Magnet Test)

Nissan Patrol Y62, Toyota Prado 250 (2024+), Kia Tasman, BYD Shark 6, GWM Tank 300/500, and most new Chinese-manufactured vehicles. Use the fridge magnet test or our Vehicle Roof Compatibility Checker to check.

This list is growing. Let us know if you've tested a vehicle that isn't listed.

Other Non-Magnetic Surfaces

Caravan Roofs

Most modern caravan roofs are aluminium or fibreglass composite - neither is magnetic. The mounting discs work on any clean, smooth, non-porous surface, so the same solution applies. This is actually the most common use case for our mounting discs.

Many of our customers use the magnetic mount directly on their steel-roofed tow vehicle while driving, then move the dish to mounting discs on the caravan roof once parked. One mount, two locations.

Aluminium Ute Canopies

Aftermarket aluminium canopies are non-magnetic, even if the vehicle cab underneath is steel. Either mount discs on the canopy roof, or use the magnetic mount directly on the steel cab roof instead.

Checker Plate (Diamond Plate)

We recommend mounting discs on all checker plate surfaces, even steel checker plate. The raised diamond pattern prevents the magnetic feet from sitting flat, significantly reducing grip. For best results, bond your mounting discs using Sikaflex 252 structural adhesive rather than VHB tape - the adhesive fills the gaps in the textured surface for a much stronger bond.

Roof Racks

If your vehicle has a roof rack fitted (even on an aluminium-roofed vehicle), the magnets may grip steel crossbars. However, the surface area is usually too narrow for reliable magnetic contact, and most roof rack platforms (Rhino-Rack Pioneer, ARB BASE Rack) are aluminium, so they're non-magnetic anyway.

The mounting discs positioned directly on the vehicle or caravan roof are a more reliable solution.

Farm & Heavy Equipment

Tractor cabs, headers, excavators and other heavy equipment typically have steel roofs, so the magnetic mount usually works directly. Do the fridge magnet test to confirm. For permanent installations on heavy equipment, consider bolting the mount base directly using the M6 mounting holes rather than relying on magnets alone - the vibration from heavy machinery is more intense than a vehicle on the road.

Frequently Asked Questions

Will the magnetic mount damage my aluminium roof?
No. The rubber-coated magnetic feet won't scratch aluminium any more than they'd scratch steel. Even without the discs, placing the mount on aluminium won't cause damage - it just won't hold.
Can I use the mounting discs on a painted surface?
Yes. The 3M VHB tape bonds to painted metal, powder-coated surfaces, and smooth composites. The surface needs to be clean, dry and free of wax or silicone products. We include an isopropyl alcohol wipe in each mounting disc kit for surface preparation.
How much weight can the mounting discs hold?
The VHB tape bond strength far exceeds what's needed. The Starlink Mini weighs approximately 1.1kg and the Dishy Mini Mount adds 1.3kg, so the total load on the discs is around 2.4kg - well within the capacity of the 3M VHB tape and neodymium magnets. The system is tested and proven at highway speeds and on corrugated roads.
What if I sell my vehicle?
The mounting discs can be removed with 3M adhesive remover or gentle heat from a heat gun. This releases the VHB tape without damaging the paint underneath. Your new vehicle might have a steel roof (no discs needed) or aluminium (transfer or buy a new set).
Do I need mounting discs for every vehicle?
Only for vehicles with non-magnetic roofs. If your tow vehicle has a steel roof but your caravan has an aluminium roof, you'd only need discs on the caravan.
What about checker plate or textured surfaces?
Use mounting discs with Sikaflex 252 structural adhesive instead of VHB tape. The adhesive fills the gaps in the textured surface for a stronger bond than tape can achieve on an uneven surface.

Related Guides

Not sure about your vehicle? Try our free Vehicle Roof Compatibility Checker - 77 vehicles in the database and growing. Or join the Starlink Mini Users Australia Facebook group - 40,000+ members who've probably mounted a Starlink on the same vehicle you're driving. Browse Mounting Disc Kits | Magnetic Mount Kits | All Starlink Mini Accessories For the full overview, see our full roof mount guide.

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