What Is GAG Plastic Sheet?
GAG plastic sheet is a multilayer co-extruded material composed of PETG / APET / PETG. It combines the formability and sealing properties of PETG with the rigidity and cost-effectiveness of APET, making it an ideal choice for thermoforming applications in the packaging industry.
This structure not only ensures excellent clarity and impact resistance, but also enhances bonding strength during sealing processes like RF welding and heat sealing — areas where pure APET struggles.
Why Use GAG Sheet for Thermoforming?
Thermoforming is a widely used method in the packaging industry to create containers, blisters, clamshells, and trays from plastic sheets. GAG sheets are particularly suitable for thermoforming because:
- The PETG outer layers soften easily and allow for smooth forming without cracking.
- The APET core adds strength and reduces cost.
- The layered structure allows it to be RF sealed and heat sealed, which is not possible with 100% APET.
- It maintains high optical transparency, crucial for consumer packaging.
Common Applications
GAG plastic sheets are widely used in:
- Cosmetic blister packaging
- Pharmaceutical trays and blisters
- Food containers and lids
- Retail clamshell packaging
- Medical device trays
- Folding boxes and transparent cartons
- Stationery and electronic product packaging
Technical Specifications of GAG Plastic Sheet
| Property | Value / Range |
|---|---|
| Structure | PETG / APET / PETG |
| Thickness | 0.18 mm – 1.7 mm |
| Width | Up to 1400 mm (customizable) |
| Color | Clear / Transparent (custom available) |
| Density | ~1.34 g/cm³ |
| Transparency | > 88% |
| Surface Finish | Glossy or Matte |
| Sealing Methods | Heat sealing / RF welding |
| Forming Temperature | 120–150°C (approx.) |
| Food Contact Compliance | FDA / EU standard available |
| Packing Form | Roll or Sheet |
Key Features & Benefits
- Excellent Formability
GAG sheet can be deeply thermoformed without stress whitening or cracking. - High Clarity & Gloss
Outstanding transparency makes your product look premium and shelf-ready. - Superior Sealability
Unlike APET, GAG is compatible with RF and heat sealing, making it versatile for different packaging lines. - Impact Resistance
Durable and resistant to breakage during handling or shipping. - Cost Efficiency
More affordable than 100% PETG while retaining similar properties. - Food-Grade Safety
Non-toxic, BPA-free, and available with FDA/EU certifications.
About Our GAG Sheet Manufacturing
At DESU, we use state-of-the-art co-extrusion lines to produce high-quality GAG plastic sheets tailored for thermoforming. Our material is ISO-certified, recyclable, and tested under strict QC standards to ensure consistency in clarity, thickness, and sealing performance.
Whether you need standard specifications or customized GAG rolls or sheets, we deliver on time, every time.
Frequently Asked Questions
Q: What’s the difference between APET, PETG, and GAG?
A: APET is rigid and cost-effective, PETG is formable and sealable, while GAG combines both benefits in one sheet.
Q: Can I use GAG for RF sealing applications?
A: Yes, the PETG outer layers enable reliable RF and heat sealing.
Q: Do you offer colored or anti-static GAG sheets?
A: Yes, customization options are available upon request.
