Aluminum Sublimation Sheet A3 vs A4 is popular for creating high-quality, long-lasting prints for signage, decoration, photography, and personalized gifts. Two of the most common sizes are A3 and A4. While both are made from high-quality coated aluminum, their dimensions, weight, and ideal uses differ.


Specification Comparison Table
| Specification | A3 Aluminum Sublimation Sheet | A4 Aluminum Sublimation Sheet | 
|---|---|---|
| Dimensions (mm) | 297 × 420 | 210 × 297 | 
| Thickness Options | 0.5mm, 0.7mm, 1.0mm | 0.5mm, 0.7mm, 1.0mm | 
| Surface Finish | Glossy White / Matte White / Brushed | Glossy White / Matte White / Brushed | 
| Alloy | 1050, 1100, 3003 | 1050, 1100, 3003 | 
| Weight per Sheet | ~0.55 – 0.8 kg | ~0.25 – 0.4 kg | 
| Printing Method | Dye Sublimation Heat Transfer | Dye Sublimation Heat Transfer | 
| Packaging | Shrink Wrap + Carton + Pallet | Shrink Wrap + Carton + Pallet | 
Classification by Size


- A3 – Larger format, more space for designs, ideal for signage or posters.
- A4 – Standard paper size, perfect for small plaques, photos, and personalized gifts.
Thickness Options
Aluminum sublimation sheets are available in different thicknesses:
- 0.5 mm – Lightweight, easy to cut, suitable for craft projects.
- 0.7 mm – Medium thickness for durability and versatility.
- 1.0 mm – Rigid and strong, ideal for outdoor signage or long-term displays.
Alloy Options
Common alloys for sublimation sheets:
- 1050 / 1100 – Soft, excellent corrosion resistance.
- 3003 – Added manganese for improved strength.
Packaging Details
- Each sheet is protected with PE film to prevent scratches.
- Bundled in cartons or wooden cases for safe transport.
- Custom packaging available for bulk orders.
Key Differences Between A3 and A4
| Feature | A3 Sheet | A4 Sheet | 
|---|---|---|
| Printing Area | Large | Medium | 
| Ideal Use | Posters, signage, big artworks | Photos, small signs, gifts | 
| Cost per Sheet | Higher | Lower | 
| Handling & Storage | Needs more space | Easy to store | 
Applications of A3 and A4 Sublimation Sheets
A3 Aluminum Sublimation Sheet Applications:
- Store signs and nameboards
- Large photo frames
- Wall décor panels
- Information boards
A4 Aluminum Sublimation Sheet Applications:
- Personalized photo gifts
- Award plaques
- Menu boards
- Desk signs
How to Choose Between A3 and A4
When deciding between A3 vs A4 aluminum sublimation sheets, consider:
- Size of your design – Larger graphics benefit from A3.
- Budget – A4 is more affordable for small projects.
- Purpose – Outdoor signage may need thicker A3 sheets.
Price Comparison
| Size | Thickness | Price Range (per sheet, USD)* | 
|---|---|---|
| A3 | 0.5 mm | $2.50 – $3.50 | 
| A3 | 1.0 mm | $4.50 – $5.80 | 
| A4 | 0.5 mm | $1.20 – $2.00 | 
| A4 | 1.0 mm | $2.50 – $3.20 | 
*Prices vary depending on order quantity and coating type. Contact WORTHWILL Aluminum for bulk quotes.
Aluminum Sublimation Sheet A3 vs A4
Both A3 and A4 aluminum sublimation sheet offers high-quality printing surfaces for vibrant, durable designs. A3 is perfect for larger projects and signage, while A4 suits smaller items and cost-sensitive orders. By understanding the specifications, thickness options, and applications, you can choose the right size for your needs.
For high-quality Aluminum Sublimation Sheet A3 vs A4, Fastarriver Aluminum offers bulk supply, competitive prices, and reliable packaging.
 
																
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