Heat-resistant BOPET/PE Lidding Films, Easy to Peel Tray Lidding Films

What Is Heat-Resistant BOPET/PE Lidding Film?

Heat-resistant BOPET/PE lidding film is a laminated tray-sealing film with a biaxially oriented PET outer layer and a PE-based or application-specific heat-seal layer. The BOPET layer provides clarity, dimensional stability, tensile strength, puncture resistance, and printability, while the sealant layer creates the bond to a compatible food tray or container.

HSQY supplies nominal thicknesses from 0.052mm to 0.09mm, roll widths from 150mm to 900mm, and standard 500m rolls with custom conversion available. Clear, printed, easy-peel, medium-peel, weld-seal, anti-fog, and barrier grades can be developed for ready meals, processed foods, catering, and other tray-packed applications.

Important: “Heat resistant” can describe several different requirements, including high sealing temperature, hot filling, pasteurisation, microwave reheating, or conventional-oven use. A standard BOPET/PE laminate should not automatically be described as a −25°C to 200°C dual-ovenable film. The exact laminate, tray, food, temperature, duration, and sealing process must be validated.

What Does Heat Resistance Mean for Lidding Film?

Different food-packaging processes expose the film to different types of heat. The required grade should be selected according to the actual process rather than one general temperature claim.

Heat-Resistant BOPET/PE Film Specifications

The following specifications retain the current product information while separating standard values from application-specific claims. Final guaranteed performance should be documented in the technical data sheet, approved sample, and purchase order.

How the Film Structure Supports Heat Resistance

Heat-Resistant Film Grades

Tray Material Compatibility

The BOPET carrier does not determine tray compatibility. The heat-seal layer must be matched to the tray flange chemistry. A physical tray sample is the most reliable basis for testing.

Easy-Peel and Weld-Seal Options

Peel force may change after chilling, freezing, microwave reheating, or oven heating. Test the seal before and after the complete storage and heating cycle.

Anti-Fog and High-Barrier Options

Anti-fog treatment helps prevent condensation from obscuring the food during chilled display. A heat-resistant anti-fog structure must retain both clarity and seal strength during the required storage and reheating process.

High-barrier films may incorporate EVOH or another functional layer for MAP. Buyers should provide the target OTR, WVTR, gas mixture, food type, storage temperature, heating cycle, and required shelf life.

Critical Tests for Microwave and Oven Projects

• Dimensional stability: Check shrinkage, curling, wrinkling, and distortion.

• Seal retention: Measure seal strength before and after storage and heating.

• Peel behavior: Confirm the film opens cleanly at the required consumer temperature.

• Delamination resistance: Verify the laminate does not blister or separate.

• Ink and coating resistance: Check color, rub, odor, transfer, and adhesion after heating.

• Leakage and burst performance: Evaluate steam pressure, liquids, oils, and food contamination.

• Venting: Confirm whether perforation, slit vents, or consumer piercing instructions are required.

• Food-contact suitability: Verify the exact film, ink, adhesive, food type, time, and temperature conditions.

Tray-Sealer and Roll Compatibility

Provide the tray-sealer brand and model, film width, core inside diameter, maximum outer diameter, roll weight, winding direction, seal-side orientation, eye-mark sensor, tooling layout, operating speed, temperature, pressure, and dwell time.

Production trials should evaluate web tracking, tension, cutting, print registration, seal continuity, peel force, leakage, contamination tolerance, anti-fog performance, thermal shrinkage, and package performance after the complete heating cycle.

Applications

• CPET ready meals for microwave or validated conventional-oven reheating

• Frozen and chilled prepared meals

• Airline, railway, hospital, school, and institutional catering

• Hot-fill and pasteurised food packaging after validation

• Meat, poultry, seafood, and prepared-food MAP applications

• Dairy, bakery, deli, salads, and processed foods

• Private-label meals requiring printed heating instructions

• Food-service and contract-packing operations

Explore HSQY's CPET tray range and lidding-film category for compatible packaging options.

Information Required for an Accurate Quotation

1. Tray material, supplier, product code, drawing, or physical sample

2. Tray dimensions, flange width, compartments, and fill weight

3. Food type, oil content, moisture level, and filling temperature

4. Required thermal process: sealing only, hot fill, pasteurisation, microwave, or conventional oven

5. Minimum and maximum temperature and total exposure time

6. Whether the lid remains on during reheating and whether venting is required

7. Tray-sealing machine brand, model, tooling layout, and line speed

8. Film thickness, width, length, core ID, maximum outer diameter, roll weight, and winding direction

9. Easy-peel, hard-peel, or weld-seal requirement

10. Anti-fog, barrier, printing, perforation, or transparent-window requirements

11. Required food-contact, migration, quality, and destination-market documents

12. Trial quantity, annual volume, destination, and launch date

Request Heat-Resistant Film Samples

Customization Services

• Custom 0.052–0.09mm thickness and tolerance

• Custom 150–900mm roll width

• Custom roll length, core, roll weight, outer diameter, and winding direction

• Easy-peel, medium-peel, hard-peel, and weld-seal structures

• Anti-fog, high-barrier, MAP, microwave-compatible, and qualified ovenable grades

• Flexographic or gravure printing using project-appropriate inks and adhesives

• Custom eye marks, print repeats, transparent windows, perforation, and slit vents

• Tray compatibility review, sample rolls, and production-line trials

• Custom cartons, roll labels, pallet marks, and international delivery

Quality and Compliance Documentation

HSQY can provide available quality-management, inspection, and material documents for the approved film grade. Buyers should request the technical data sheet, certificate of analysis, food-contact declaration, migration or compliance reports, thermal test reports, and roll inspection criteria for the exact laminate.

ISO 9001 is a quality-management-system certification and is not product-specific proof of food-contact safety. SGS or food-contact claims should identify the exact report, film structure, food type, temperature, duration, and intended conditions of use.

HSQY International Exhibitions

Production and Packing

Packaging and Delivery

Frequently Asked Questions

What is heat-resistant BOPET/PE lidding film?

It is a laminated lidding film with a BOPET outer layer and a heat-seal structure designed for specified elevated-temperature sealing, filling, reheating, or cooking conditions.

Is every BOPET/PE lidding film ovenable?

No. BOPET/PE describes a broad material family. Conventional-oven use requires a qualified structure whose film, sealant, adhesive, ink, tray, and food system have been tested together.

Can the film be used in a microwave?

Application-specific microwave-compatible grades can be developed. The package should be tested for venting, steam pressure, seal retention, food oils, and consumer opening.

What temperature range can the film withstand?

The valid temperature range depends on the exact laminate and exposure time. A single −25°C to 200°C claim should not be applied without product-specific thermal test data.

Which trays are suitable for ovenable lidding film?

CPET is commonly used for ovenable ready meals. APET, PP, PET/PE, aluminium, and paperboard require separate compatibility and thermal-process evaluation.

Is easy-peel heat-resistant film available?

Yes. Easy-peel, medium-peel, hard-peel, and weld-seal versions can be evaluated. Peel force should be measured before and after the full thermal cycle.

Is anti-fog heat-resistant film available?

Yes. Anti-fog can be combined with selected heat-resistant structures for chilled foods that are later reheated.

Can high-barrier film be used for MAP ready meals?

Yes, subject to structure development. Provide the required OTR, WVTR, gas mixture, storage temperature, heating cycle, food type, and target shelf life.

Can the film be custom printed?

Yes. Printing can include branding, product information, cooking instructions, barcodes, QR codes, and traceability. The inks and adhesives must be suitable for the intended thermal process.

What thicknesses and widths are available?

The current page lists 0.052–0.09mm thickness and 150–900mm width, with custom roll length and conversion available.

Why does film shrink or wrinkle during sealing?

Possible causes include excessive temperature, long dwell time, uneven pressure, high film tension, unsuitable heat shrinkage, incorrect tooling, or an incompatible structure.

Why does the seal fail after oven heating?

Failure may result from an unsuitable sealant, adhesive softening, tray deformation, contamination, steam pressure, food oils, thermal shrinkage, or an excessive time-temperature cycle.

What is the minimum order quantity?

The current stated MOQ is 1000kg. Sample and trial quantities depend on available stock, structure, width, printing, and conversion requirements.

How long is the production lead time?

Typical lead time is approximately 10–15 days after deposit and final specification approval. Printed or specialty ovenable structures may require additional time.

Can I request a sample before bulk production?

Yes, subject to material availability and specification. Send the tray sample, machine details, food application, temperature, heating time, film dimensions, and seal requirements.

About HSQY Plastic Group

HSQY Plastic Group supplies heat-resistant lidding films, BOPET/PE laminates, CPET, PET and PP food trays, plastic sheets, and related packaging products for international B2B customers.

The team can support film-grade selection, thermal-process review, tray compatibility, roll conversion, printing, peel-force development, anti-fog and barrier selection, samples, production-line trials, quality documentation, export packing, and international delivery.

Contact HSQY for Heat-Resistant Lidding Film