Plastic Sheet
Food Containers
Sealing Film
Food Packing Machinery 
One-Stop Solutions Product Categories
- All Plastic Sheet Materials
- Complete Food Container Range
- Sealing Films for All Tray Types
- Food Packing Machinery
- One-Stop Solutions
Stop choosing between the high cost of pure PETG, the brittleness of standard APET, and the recycling penalties of multi-material laminates. At HSQY, we engineer advanced GAG (PETG-APET-PETG) composite sheets utilizing state-of-the-art 3-layer symmetrical co-extrusion technology. This "sandwich" architecture delivers the ultimate balance: the deep-draw formability and impact resistance of PETG on the outside, combined with the high rigidity and cost-efficiency of an APET core.
Crucially, because all three layers are PET-based polyesters, our GAG sheets offer 100% mono-material recyclability, allowing your brand to bypass complex separation processes and comply with stringent global sustainability mandates. From ISO 11607 compliant medical sterilization trays to premium eco-friendly retail clamshells, HSQY provides the exact co-extruded matrix your high-speed thermoforming lines demand.
Optimized "Sandwich" Mechanics: By encapsulating a high-modulus APET core between two glycol-modified PETG skins, we achieve superior structural rigidity and eliminate stress-whitening during deep-draw vacuum forming, all at a lower cost than solid PETG.
100% Mono-Material Recyclability: Unlike traditional multi-layer barriers (like PET/PE) that end up in landfills, our GAG sheets are chemically homogeneous. They flow seamlessly into standard PET (#1) recycling streams, protecting your brand from EPR (Extended Producer Responsibility) taxes and plastic penalties.
Medical-Grade Sterilization Endurance: Our specialized GAG-M grades are engineered to withstand harsh sterilization protocols—including Gamma irradiation, Ethylene Oxide (EtO), and E-beam—without yellowing, embrittlement, or losing optical clarity.
Precision Layer-Ratio Control: Our advanced co-extrusion dies allow us to precisely calibrate the thickness ratio of the PETG skin to the APET core, optimizing the sheet's heat-sealing properties and impact strength for your specific mold geometry.
Different regulatory and mechanical demands require precise co-extrusion profiling. Explore our specialized GAG matrix:
Medical Grade (GAG-M): Fully compliant with FDA, ISO 10993-1, and ISO 11607 standards. Ideal for surgical kit blisters, implant packaging, and sterilization containers requiring absolute biocompatibility and clarity.
Pharmaceutical Blister Grade: Optimized for high-speed cold-forming and thermoforming of tablet/capsule blisters, offering superior moisture barrier properties and crisp cavity definition.
Premium Eco-Packaging Grade: Designed for high-end cosmetic clamshells, electronics packaging, and retail displays where glass-like aesthetics must be paired with verifiable, single-stream recyclability.
Heavy-Duty Industrial Grade: Thick-gauge co-extruded sheets (up to 6.0mm) for CNC machining, machine guards, and protective glazing, offering the toughness of Polycarbonate at a fraction of the cost.
*Available in custom widths (up to 1300mm), precise thicknesses (0.17mm to 6.0mm), and specialized surface treatments (anti-fog, anti-static). Light transmittance: >90%.
Specifying the right co-extruded structure is critical for passing audits and minimizing scrap. Our engineers will help you define:
Skin-to-Core Ratio: Adjusting the PETG layer thickness to ensure perfect heat-sealing with your lidding films while maintaining the APET core's cost-efficiency.
Sterilization Dosage Matching: Ensuring the polymer's additive package can absorb specific Gamma radiation doses (e.g., 25-50 kGy) without cross-linking or discoloration.
Draw Ratio Management: Calibrating the sheet's overall gauge and heating profiles to prevent corner-thinning in deep, multi-cavity medical trays.
Q1: Why use a 3-layer GAG structure instead of solid PETG or APET?
A: It is the ultimate engineering compromise. Solid PETG offers great forming but is expensive and softer. Standard APET is rigid and cheap but prone to stress-whitening in deep draws. The GAG "sandwich" structure uses a rigid, cost-effective APET core for structural integrity, encapsulated by PETG skins that provide impact resistance, deep-draw formability without whitening, and excellent heat-sealing properties. You get the performance of PETG with the economics of APET.
Q2: Is a multi-layer composite sheet really 100% recyclable?
A: Yes, this is a massive advantage over traditional multi-material laminates (like PET/PE or PA/EVOH). Because both the PETG skin and the APET core belong to the same polyester chemical family, they are fully compatible. The entire GAG sheet can be ground up and recycled directly into the standard PET (#1) stream without any delamination or separation, ensuring compliance with strict global mono-material packaging regulations.
Q3: Can your Medical-Grade GAG withstand Gamma and EtO sterilization?
A: Absolutely. Our GAG-M grades are specifically formulated for the medical device industry and comply with ISO 10993 and ISO 11607 standards. They are engineered to maintain their mechanical strength and crystal clarity after exposure to Ethylene Oxide (EtO), Gamma irradiation, and Electron Beam (E-beam) sterilization. (Note: Steam autoclaving requires high-temperature polymers like PEEK or specialized high-heat CPET, as standard PETG softens around 80°C).
Q4: What is the MOQ, and do you support trial orders for new medical projects?
A: While standard bulk production runs are highly cost-effective (typically starting around 1 metric ton or one container load for standard gauges), we understand that medical and premium packaging projects require rigorous validation. We offer flexible trial-order quantities and provide comprehensive TDS, COA, and biocompatibility reports to support your FDA/CE submission processes. Free samples are available for your thermoforming and sterilization trials.
Contact us today
Tel: +86-15806115291
WhatsApp: +86-15806115291
Email: sale6@hgqyplastic.com
11th floor, Huasheng Building, Zhonglou District, Changzhou City, Jiangsu Province, China, 213001
