HSQY GAG PET Film Sheet for High-frequency Welding.

GAG PET Film Sheet for High-Frequency Welding

HSQY GAG PET Film Sheet for High-Frequency Welding is a three-layer co-extruded polyester sheet with a PETG/APET/PETG (A/B/A) structure. It is designed for packaging and plastic fabrication applications requiring high-frequency (HF) welding, radio-frequency (RF) sealing, thermoforming, die cutting and bonding.

The two PETG outer layers offer useful welding and fabrication characteristics, while the APET core provides rigidity and dimensional support. This multilayer construction can provide a practical alternative to solid PETG sheet where suitable high-frequency sealing performance and material-cost control are required.

HSQY Plastic supplies GAG PET sheets and rolls with thicknesses from 0.15 mm to 3 mm, roll widths from 110 mm to 1280 mm, and cut-sheet sizes including 915 × 1220 mm and 1000 × 2000 mm. Transparent and customized color options are available according to production requirements.

GAG sheets can be considered for high-frequency welded transparent boxes, packaging components, stationery products, protective covers, decorative items and selected formed products. Actual weldability depends on material grade, PETG layer thickness, equipment settings, electrode design and welding conditions. Production trials are recommended before bulk manufacturing.

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What Is GAG PET Sheet for High-Frequency Welding?

GAG PET sheet is a multilayer polyester material produced by combining PETG and APET through co-extrusion. The structure consists of PETG on both outer surfaces and APET in the middle. This configuration is also known as G-PET-G or PETG/APET/PETG film.

PETG is a glycol-modified polyester known for its toughness and converting characteristics. APET is amorphous polyethylene terephthalate, a rigid polyester commonly used for transparent packaging. Combining these materials allows GAG sheet to retain PETG surface characteristics while using APET in the central layer for structural support.

For high-frequency welding applications, the PETG outer surfaces can support the joining process when the material formulation and equipment conditions are suitable. The strength, appearance and consistency of the finished seam must be assessed through application-specific testing.

How Does High-Frequency Welding Work with GAG Sheet?

High-frequency welding, also called RF welding or dielectric welding, is a joining process that uses a high-frequency electromagnetic field to generate heat in suitable polar thermoplastic materials. Under controlled pressure and heating conditions, the contacting surfaces can soften and form a bond.

GAG sheet is of interest for this process because its PETG outer layers can provide favorable joining characteristics compared with certain conventional PET sheet structures. The APET core contributes rigidity while the external layers are positioned at the bonding surfaces.

The process must be adjusted for the selected GAG grade, sheet thickness, PETG layer ratio, electrode geometry and welding machine. Some applications may require heated tooling or alternative joining arrangements. Reliable weldability should be verified using the actual materials and equipment.

Material Positioning and Surface Contact

Position the GAG sheet so the intended bonding surfaces make consistent contact. Surface cleanliness, alignment and appropriate pressure help reduce welding defects and uneven seams.

High-Frequency Energy and Pressure

The welding machine applies high-frequency energy through its tooling while maintaining pressure on the joining area. The required power, cycle time and pressure depend on the material and equipment configuration.

Cooling and Seam Inspection

After the welding cycle, allow the joint to stabilize under suitable conditions. Inspect the finished seam for adhesion, dimensional accuracy, visual appearance, distortion and consistency.

Production Validation

Before starting volume production, confirm the required seam strength, peel performance, appearance and durability using representative samples and agreed test methods.

PETG/APET/PETG Three-Layer Construction

GAG sheet uses a symmetrical A/B/A construction. Each layer contributes to the overall forming, welding, fabrication and mechanical performance of the finished material.

The ratio between PETG and APET can affect welding response, sheet stiffness, thermoforming behavior and material cost. Customers requiring a specific weld strength or joining process should include the intended application and performance criteria in their inquiry.

GAG PET Film Sheet Specifications

Technical Note: The listed dimensions describe the GAG product range. Actual high-frequency welding performance must be confirmed for the selected sheet thickness, PETG layer ratio, tooling and welding machine. Please request grade-specific information before production.

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Key Benefits of GAG Sheet for High-Frequency Welding

High-Frequency Welding Compatibility

The PETG outer layers can provide favorable characteristics for high-frequency joining and sealing under suitable conditions. Final weld quality depends on the selected grade, contact surfaces, welding energy, pressure, cycle time and equipment configuration.

Good Optical Clarity

Transparent GAG sheet offers good product visibility and an attractive appearance for clear packaging, retail displays and fabricated components. Final clarity and surface quality depend on material formulation and sheet production conditions.

Balanced Rigidity and Toughness

The PETG/APET/PETG structure combines surface toughness with central-layer rigidity. The mechanical properties of the finished product depend on sheet thickness, material grade and component design.

Thermoforming and Vacuum Forming

GAG sheet can be processed into formed packaging components using appropriate thermoforming equipment. Heating profiles, mold geometry and forming depth must be matched to the material and final product requirements.

Folding and Fabrication Options

Suitable GAG grades can be considered for scoring, cutting, drilling, folding and selected adhesive bonding processes. These capabilities can support clear packaging boxes, furniture protection products and fabricated plastic components.

Cost-Efficient Composite Structure

By combining PETG outer layers with an APET core, GAG material may reduce PETG resin use compared with solid PETG sheet while retaining useful surface characteristics. The actual cost benefit depends on the layer ratio, material grade and market conditions.

Applications of High-Frequency Weldable GAG PET Sheet

High-Frequency Welded Packaging: GAG can be evaluated for transparent packaging components that require an RF-welded joint. The joining process and seam strength should be validated for the specific package and tooling.

Transparent Folding Boxes: PETG surface characteristics can be useful for clear folding cartons, presentation boxes and selected packaging assemblies requiring joining, creasing or adhesive bonding.

Furniture Protective Panels: Transparent GAG material can be used for selected surface-protection and fabricated furniture components. Scratch resistance, fastening, thickness and installation suitability must be evaluated for the intended design.

Blister Packaging: Suitable GAG grades can be thermoformed into protective blister cavities and retail packaging components for hardware, cosmetics, toys, accessories and other products.

Decorative and Display Products: Clear or colored GAG sheet can be fabricated into selected decorative items, display panels, stationery products and transparent protective components.

Food Packaging Components: GAG sheets may be used in certain food packaging applications when the specific formulation and finished product meet the applicable food-contact requirements. General quality certificates do not automatically establish food-contact suitability.

GAG vs. APET vs. PETG for High-Frequency Welding

GAG, APET and PETG have different material structures and joining characteristics. The appropriate choice depends on the intended welding method, mechanical performance, packaging design and material cost.

How to Select GAG Sheet for RF Welding

Welding Application: Describe the finished product, required welded joint and whether the material will be joined to GAG, PETG or another substrate.

Sheet Thickness: Specify the required material thickness and tolerance. Thicker material may require different welding equipment settings or alternative joining methods.

PETG Layer Ratio: Discuss the required surface-layer construction because PETG thickness and material grade can affect joining behavior and overall performance.

Welding Equipment: Provide the type of high-frequency welding machine, operating frequency, available power and electrode details where known.

Seam Requirements: Indicate the desired weld width, seam appearance, peel strength, durability and any relevant acceptance criteria.

Dimensions: Confirm roll width, cut-sheet size, core diameter, roll weight and winding specifications as appropriate.

Additional Processing: Specify whether the sheet will undergo thermoforming, printing, folding, die cutting, bonding or other fabrication before or after welding.

Quantity and Destination: Include the estimated order volume, purchasing frequency, shipping destination and delivery requirements.

Discuss Your HF Welding Requirements

HF Welding Quality and Production Testing

Weld Strength and Peel Testing

Evaluate weld adhesion and peel performance using agreed test methods. The required acceptance criteria should reflect the actual loading and handling conditions of the finished product.

Seam Appearance and Dimensional Accuracy

Inspect the welded area for deformation, edge damage, discoloration, inconsistent bonding and dimensional changes. Adjust tooling and processing conditions where necessary.

Surface and Tooling Compatibility

Confirm that the material surfaces, coatings, printing inks and electrode design are suitable for the intended welding operation. Certain finishes or contaminants may interfere with bonding.

Production Consistency

For bulk production, establish agreed inspection criteria for thickness, surface quality, seam consistency, material handling and finished-product performance.

GAG PET Sheet Packing and Delivery

HSQY Plastic offers protective packing for GAG sheet rolls and cut sheets to help reduce scratches, contamination and handling damage during storage and shipment. Packing arrangements can be discussed according to size, thickness and transportation requirements.

Sample Packing: A4-size sheets can be packed in PP bags or boxes for evaluation.

Roll Packing: Rolls can be wrapped in PE film or kraft paper according to the agreed shipment specification.

Sheet Packing: Cut sheets can be packed in cartons or other protective packaging as required.

Pallet Packing: The original product information lists 500–2000 kg per plywood pallet, depending on dimensions and handling requirements.

Container Loading: The listed reference is approximately 20 tons per container, subject to packing configuration and transportation weight restrictions.

Delivery and Lead Time: EXW, FOB, CNF and DDU terms are listed. The reference lead time is 7–15 days for 1–20,000 kg, with larger orders subject to scheduling.

Quality Certificates and Product Documentation

HSQY Plastic provides product information and can discuss available inspection reports and quality documents for selected GAG PET sheet grades. Buyers should request current documents and confirm whether they apply to the intended product and application.

The original product information references SGS reports and ISO 9001:2008 documentation. Please confirm the current quality management certificate and applicable scope. These documents do not independently certify high-frequency weld strength or food-contact compliance.

GAG PET Sheet Technical Data Sheet

Review the available PET GAG sheet data sheet for general material information. Contact HSQY for the applicable grade specifications and welding-related technical information for your project.

Download PET GAG Sheet Data Sheet (PDF)

HSQY Plastic at International Exhibitions

HSQY Plastic Group connects with packaging manufacturers, plastic converters, distributors and industrial buyers at international plastics and packaging exhibitions. Visitors can discuss GAG PET sheet specifications, welding applications, customized dimensions and export requirements with our team.

Why Choose HSQY Plastic for GAG PET Sheets?

Three-Layer GAG Material Supply: HSQY supplies PETG/APET/PETG sheet and film materials for packaging converters and industrial fabricators.

Customized Dimensions: Customers can discuss sheet gauge, width, color, roll size and required material construction.

Application-Oriented Technical Discussion: Buyers can provide welding equipment details, forming requirements, seam performance expectations and product drawings to discuss suitable supply options.

International Order Support: HSQY works with manufacturers, distributors and professional buyers to discuss material samples, bulk packing, payment terms and export arrangements.

Frequently Asked Questions About GAG Sheet for HF Welding

What is GAG PET sheet for high-frequency welding?

GAG PET sheet is a three-layer PETG/APET/PETG material with PETG outer layers and an APET core. Suitable grades can be evaluated for high-frequency welding and other packaging fabrication operations.

Can GAG PET sheet be high-frequency welded?

GAG sheets with suitable PETG surface layers can be considered for RF welding. Weldability must be confirmed for the specific material formulation, total thickness, electrode design, welding settings and joined materials.

What is the difference between RF welding and heat sealing?

RF welding uses a high-frequency electromagnetic field to generate heat within suitable materials, while conventional thermal heat sealing typically applies heat through heated tools or sealing surfaces. Different processes require different material and equipment conditions.

Why are PETG outer layers used in GAG sheet?

PETG provides useful surface toughness, forming and bonding characteristics. In GAG construction, PETG is positioned on both sides of the APET core to support selected joining and fabrication applications.

What is the difference between GAG, APET and PETG for RF welding?

GAG combines PETG outer layers with an APET core. Standard APET may be more difficult to RF weld under certain conditions, while suitable PETG grades can have favorable joining characteristics. Material selection should be verified by welding trials.

What thicknesses of GAG PET sheet are available?

HSQY lists GAG sheet thicknesses from 0.15 mm to 3 mm. However, the suitability of a specific gauge for high-frequency welding depends on the welding process and available equipment.

What roll widths and sheet sizes are available?

Listed roll widths are 110–1280 mm. Standard cut-sheet sizes include 915 × 1220 mm and 1000 × 2000 mm. Custom dimensions can be discussed.

Can GAG PET sheet be welded to PVC or other plastics?

Compatibility with PVC, PETG, GAG or another substrate cannot be assumed. Different polymers may respond differently to RF welding. Joint strength and suitability must be confirmed using actual materials and process trials.

Can GAG PET sheet be thermoformed?

Yes. Suitable GAG sheet grades can be thermoformed or vacuum formed into trays, blisters and other packaging products. Forming settings depend on thickness, grade, mold design and processing conditions.

Can GAG sheet be printed, folded or glued?

Selected GAG grades can be evaluated for printing, folding, die cutting and adhesive bonding. Buyers should test ink adhesion, crease quality and adhesive compatibility before commercial production.

How is weld strength tested?

Testing may include peel strength, seam durability, appearance and dimensional inspections. The appropriate tests and acceptance criteria depend on the finished product and intended use.

Is GAG PET sheet suitable for food-contact packaging?

Food-contact suitability depends on the specific material grade, formulation and intended conditions of use. Buyers should request applicable food-contact documents for the destination market. SGS testing or an ISO quality management certificate alone does not establish compliance.

Is GAG PET sheet recyclable?

GAG contains PET-family materials. Actual recyclability depends on the finished product construction, additives, adhesives, sorting technology and local recycling infrastructure.

What is the minimum order quantity?

The product information lists a minimum order quantity of 1000 kg. Final MOQ requirements should be confirmed for your specific thickness, width and material grade.

Can I request GAG PET sheet samples for welding tests?

Yes. Contact HSQY to discuss sample availability and material dimensions for high-frequency welding evaluations. A4-size samples and courier arrangements can be discussed, subject to availability and freight terms.

How can I get a quotation for high-frequency weldable GAG sheet?

Please provide the required sheet thickness, roll width or sheet dimensions, application, welding machine details, intended joined materials, estimated quantity and delivery destination. Include seam requirements or product drawings where available.

About HSQY Plastic Group

Changzhou Huisu Qinye Plastic Group Co., Ltd., located in Jiangsu, China, supplies plastic sheets, films and packaging materials to manufacturers, converters and distributors. Its product range includes GAG sheets, PETG sheets, APET sheets, CPET trays, PP packaging materials and other industrial plastic products.

HSQY works with international buyers to discuss customized material specifications, samples, processing requirements, order quantities and export arrangements.

Request GAG PET Sheet Samples and Bulk Pricing

Looking for PETG/APET/PETG GAG film or sheet for high-frequency welding, transparent packaging, folding boxes or plastic fabrication? HSQY Plastic can discuss available material grades, custom dimensions, samples and supply arrangements.

Send us your required thickness, width, welding application, joined materials, estimated order quantity and destination. Our team can review suitable available specifications and quotation details.