A3 White Gloss Printable Magnetic Paper - 420mm x 297mm x .3mm (50 Pack)
A3 White Gloss Printable Magnetic Paper - 420mm x 297mm x .3mm (50 Pack)
Available in stock
A3 White Gloss Printable Magnetic Paper – 420mm x 297mm x 0.3mm (50 Pack)
The A3 White Gloss Printable Magnetic Paper – 420mm x 297mm x 0.3mm (50 Pack) contains 50 individual A3 flexible magnetic sheets, each measuring 420mm x 297mm x 0.3mm thick. Featuring a white gloss printable face and flexible magnetic backing, these sheets are designed for creating custom magnetic graphics, photographs, promotional materials, signs, labels, calendars, educational resources and removable displays for compatible ferromagnetic surfaces.
The large A3 format provides approximately twice the printable area of A4, offering plenty of space for larger graphics, photographs, marketing messages and visual information. The smooth white gloss surface provides a polished, reflective appearance, while the flexible magnetic backing allows finished graphics to be removed and repositioned on suitable magnetic steel surfaces.
Supplied as a bulk pack of 50 individual sheets, this format is ideal for businesses, retailers, schools, offices, marketing departments, events, photographers and organisations that regularly produce magnetic graphics or require multiple designs. Also known as A3 printable magnetic paper, gloss magnetic printer paper, printable magnetic sheets, magnetic photo paper, printable magnet paper or flexible magnetic printing sheets, it provides a versatile solution for lightweight magnetic display applications.
Key Features
- Sheet size: A3
- Dimensions: 420mm x 297mm
- Thickness: 0.3mm
- Pack quantity: 50 individual sheets
- Printable face: White gloss
- Backing: Flexible magnetic material
- Large A3 printable area
- Approximately twice the area of A4
- Thin and flexible 0.3mm profile
- Bulk pack suitable for repeat printing and larger projects
- Suitable for custom magnetic graphics and photographs
- Useful for promotional and retail displays
- Can be used as a full A3 sheet or cut into smaller pieces where appropriate
- Designed for lightweight magnetic display applications
- Removable and repositionable on compatible ferromagnetic surfaces
- Permanent magnetic backing
- No electricity, batteries or charging required
Common Applications
- Magnetic posters
- Custom magnetic signs
- Promotional magnets
- Magnetic photographs
- Retail graphics
- Point-of-sale displays
- Business advertising
- Marketing campaigns
- Product promotions
- Event signage
- Exhibition graphics
- Magnetic calendars
- Office notices
- Educational resources
- Classroom displays
- Magnetic labels
- Custom artwork
- Temporary signage
- Craft projects
- Visual communication materials
50 Individual A3 Magnetic Sheets
This bulk pack contains 50 individual A3 printable magnetic sheets, making it particularly useful for larger projects, repeat printing and organisations producing magnetic graphics on an ongoing basis.
Each sheet measures:
- 420mm long
- 297mm wide
- 0.3mm thick
The 50-pack can be useful for:
- Retail campaigns
- Multiple promotional graphics
- Classroom resources
- Office communication materials
- Event signage
- Exhibition graphics
- Seasonal promotions
- Multiple photographs
- Repeated designs
- Small production runs
Each sheet can be printed independently, allowing different artwork, photographs or information to be produced as required.
Large A3 Printable Format
At 420mm x 297mm, an A3 sheet provides approximately twice the surface area of standard A4 media.
The larger printable format can be useful for:
- Promotional posters
- Retail graphics
- Information displays
- Educational diagrams
- Event signage
- Large photographs
- Visual management materials
- Workplace communications
A3 magnetic paper can be especially useful where information needs to remain more visible than it would on a smaller magnetic label or graphic.
White Gloss Printable Face
Each sheet features a white gloss printable face.
The glossy surface provides a smooth, reflective finish suited to applications where a polished visual appearance is preferred.
Potential uses include:
- Photographs
- Promotional graphics
- Branding
- Retail displays
- Marketing materials
- Decorative designs
- Event graphics
The white surface provides a neutral base for printed photographs, artwork, text and graphics.
Actual print appearance will depend on the artwork, printer, ink or toner system, print settings and compatibility between the printer and magnetic media.
Gloss vs Matte Printable Magnetic Paper
Gloss and matte magnetic papers provide different visual finishes.
White gloss printable magnetic paper provides:
- A shinier surface
- Greater surface reflection
- A polished visual appearance
- Suitability for photographs and promotional graphics
Matte printable magnetic paper provides:
- A non-glossy appearance
- Reduced surface reflection
- A more subdued finish
The most suitable option depends on the desired appearance, lighting conditions and application.
Printer Compatibility
Specific printer technology and printer compatibility have not been supplied for this product and should not be assumed.
Before printing, confirm that your printer can safely accept:
- A3 media measuring 420mm x 297mm
- 0.3mm thick flexible magnetic media
- The relevant media weight and flexibility
- The required feed path
Check your printer manufacturer's instructions for supported media types, maximum media thickness, feed requirements and recommended settings.
For a bulk 50-sheet project, testing a single sheet before beginning the complete print run is recommended.
Do not force magnetic media through a printer that is not designed to accept its thickness or material type.
Create Custom Magnetic Graphics
Printable magnetic paper allows custom artwork and information to be converted into removable magnetic graphics.
Potential designs include:
- Logos
- Photographs
- Promotional messages
- Product information
- Instructions
- Calendars
- Educational graphics
- Labels
- Event information
- Decorative artwork
Magnetic graphics can be particularly useful where information changes regularly and permanent adhesive attachment is undesirable.
Retail and Point-of-Sale Displays
The bulk 50-pack can be particularly useful for retailers producing multiple or frequently changing promotional graphics.
Potential applications include:
- Sale signage
- Product promotions
- Pricing information
- Seasonal campaigns
- Brand graphics
- Product information
- Temporary notices
- Point-of-sale material
Finished magnetic graphics can be repositioned as products, promotions or store layouts change, provided the target surface is compatible.
Business and Office Applications
A3 printable magnetic sheets can also be used for workplace communication and visual management.
Examples include:
- Magnetic notices
- Schedules
- Calendars
- Workflow information
- Equipment information
- Visual management graphics
- Temporary instructions
- Department signage
The A3 format provides space for larger graphics or more detailed information than smaller magnetic sheets.
Educational and Classroom Applications
Printable magnetic paper can be used to produce reusable educational resources for compatible magnetic surfaces.
Potential applications include:
- Diagrams
- Maps
- Charts
- Timelines
- Classroom signs
- Learning activities
- Teaching graphics
- Visual aids
The 50-sheet bulk pack can be useful for schools, training organisations and educational facilities requiring multiple sets of magnetic resources.
Events and Exhibitions
A3 magnetic graphics can provide a convenient option for temporary event and exhibition displays where compatible ferromagnetic panels or structures are available.
Potential uses include:
- Event signage
- Exhibition graphics
- Directional information
- Promotional displays
- Temporary branding
- Information panels
Magnetic mounting allows graphics to be removed or repositioned without permanently adhering them to the target steel surface.
Cut Into Smaller Magnetic Pieces
Each A3 sheet can be used whole or cut into smaller pieces where appropriate.
A single sheet may be divided into:
- Multiple magnetic labels
- Small promotional magnets
- Individual photographs
- Product markers
- Name labels
- Custom shapes
- Craft magnets
This means a 50-sheet pack can potentially provide material for a large number of smaller magnetic graphics.
Use suitable cutting equipment and ensure finished edges are appropriate for the intended application.
Flexible 0.3mm Profile
At 0.3mm thick, this printable magnetic paper is a thin and flexible magnetic display material rather than a rigid high-strength magnet.
Its slim profile can be useful where:
- Lightweight graphics are required
- A flexible sheet is preferred
- Low-profile displays are desirable
- The graphic needs to sit closely against a flat steel surface
Printable magnetic paper should not be directly compared with rigid neodymium or ferrite magnets, which are intended for substantially different magnetic applications.
Designed for Lightweight Magnetic Display
This product is primarily intended for lightweight magnetic graphics and displays.
It should not be used as:
- A high-force holding magnet
- A structural magnetic mounting system
- A load-bearing attachment
- A safety restraint
- A lifting magnet
The 0.3mm thickness describes the physical thickness of the magnetic sheet and does not represent its magnetic pull force.
Surface Area and Magnetic Holding
Flexible magnetic materials generally perform best when a substantial area of the magnetic backing is in direct contact with a suitable ferromagnetic target.
Practical holding can depend on:
- Size of the finished magnetic graphic
- Available magnetic surface area
- Target material
- Target steel thickness
- Surface flatness
- Surface condition
- Paint and coatings
- Air gaps
A full A3 magnetic graphic provides considerably more magnetic contact area than a small piece cut from the same sheet.
For applications where holding is important, test the finished graphic on the actual intended surface.
Air Gaps and Surface Condition
Magnetic attraction generally decreases when separation exists between the magnetic backing and target steel.
This separation may be caused by:
- Thick paint
- Surface coatings
- Dirt
- Dust
- Rust
- Uneven surfaces
- Other non-magnetic layers
Keeping the magnetic backing flat against a clean compatible target helps maximise available magnetic contact.
Compatible Magnetic Surfaces
This printable magnetic paper is designed to attach to suitable ferromagnetic materials, including:
- Mild steel
- Iron
- Magnetic steel
- Compatible steel panels
- Suitable magnetic display surfaces
It will not magnetically attach to inherently non-magnetic materials such as:
- Aluminium
- Copper
- Brass
- Plastic
- Timber
- Standard glass
Many stainless steel grades may also be weakly magnetic or non-magnetic and should be tested before relying on magnetic attachment.
Removable and Repositionable Graphics
One of the main advantages of magnetic graphics is that they can be removed or repositioned on compatible steel surfaces.
This makes printable magnetic paper particularly useful for information that changes regularly, including:
- Promotions
- Prices
- Schedules
- Seasonal messages
- Event information
- Classroom materials
- Temporary signage
- Workplace notices
Unlike permanent adhesive graphics, the magnetic backing does not require adhesive attachment to the target steel surface.
Permanent Magnetic Operation
The flexible magnetic backing is a permanent magnetic material.
It requires:
- No electricity
- No batteries
- No charging
- No external power supply
The magnetic backing remains active during normal use.
Technical Specifications
- Product Type: A3 White Gloss Printable Magnetic Paper
- Alternative Names: A3 Printable Magnetic Paper, Gloss Magnetic Printer Paper, Printable Magnetic Sheets, Magnetic Photo Paper, Printable Magnet Paper, Flexible Magnetic Printing Sheets
- Sheet Size: A3
- Dimensions: 420mm x 297mm
- Thickness: 0.3mm
- Pack Quantity: 50 individual sheets
- Printable Face: White gloss
- Backing: Flexible magnetic material
- Format: Flexible sheet
- Magnetic Operation: Permanent
- Power Required: None
- Compatible Targets: Suitable ferromagnetic iron and steel surfaces
- Primary Function: Printable lightweight magnetic graphics and displays
- Typical Applications: Photographs, signage, promotional graphics, retail displays, office notices, educational resources, calendars, labels, events and craft projects
Storage and Handling
To help keep the sheets in good condition:
- Store them clean and dry
- Keep sheets reasonably flat
- Avoid sharp folds and creases
- Keep the printable surface free from contamination
- Protect the gloss face from unnecessary scratching
- Follow appropriate printer handling instructions
- Avoid excessive heat unless the material's temperature suitability has been confirmed
If the sheets develop a curve during storage, allow them to flatten appropriately before printing where necessary.
Please Note
This product contains 50 individual A3 White Gloss Printable Magnetic Paper sheets, each measuring 420mm x 297mm x 0.3mm thick.
Specific printer technology and compatibility have not been supplied. Before printing, confirm that your printer supports A3-size, 0.3mm thick flexible magnetic media, including the appropriate feed path and media settings. Testing a single sheet before beginning a larger production run is recommended.
No specific pull force, Gauss rating, magnetic material grade, dimensional tolerance, maximum operating temperature, printer compatibility or environmental rating has been supplied and these specifications should not be assumed.
This product is designed primarily for lightweight printable magnetic graphics and displays, not high-force holding, structural mounting or lifting. Practical holding depends on the size and shape of the finished graphic, available magnetic surface area, target material, target steel thickness, surface condition and air gaps.
Please note, this product alongside all flexible magnetic products are not compatible with glassboards.
Pull Force Information
Pull Force Information
Pull force refers to the maximum holding strength of a magnet. Measured in kilograms, it represents the amount of weight a magnet can support when attached to 10mm thick mild steel, with full, flat, and direct surface-to-surface contact.
A magnet's pull force can be affected by several factors, including its orientation (horizontal vs. vertical) and the presence of any air gaps between the magnet and the surface it’s attached to.
Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.

