What Is BOPET/PE Top Sealing Film?
BOPET/PE top sealing film is a laminated lidding film used to close compatible food trays and containers on tray-sealing equipment. The BOPET outer layer provides clarity, stiffness, tensile strength, dimensional stability, and a printable surface, while the PE-based inner layer provides heat-seal performance.
HSQY manufactures and converts BOPET/PE lidding-film rolls in nominal thicknesses from 0.06mm to 0.10mm, with standard widths of 150mm, 230mm, and 280mm and custom widths available. Clear, printed, easy-peel, medium-peel, weld-seal, anti-fog, high-barrier, freezer-compatible, and application-specific heat-treatable grades can be developed.
Technical note: BOPET/PE is not a universal structure for every tray or thermal process. Seal compatibility depends on the tray flange, sealing layer, temperature, pressure, dwell time, equipment, food product, storage conditions, and heating cycle. Conventional-oven performance must be validated using the exact film and completed package.
![Clear BOPET PE top sealing film roll for CPET food trays]( "BOPET PE top sealing film roll")
Clear BOPET/PE Lidding Film
![Custom BOPET PE tray sealing film for ready meal packaging]( "custom BOPET PE lidding film")
Custom Thickness and Width
![Clear or printed BOPET PE top sealing film for food trays]( "printed top sealing film")
Clear or Custom Printed Film
Why Use a BOPET/PE Lidding-Film Structure?
Mechanical strength: BOPET supports high-speed unwinding, web tension, cutting, and sealing.
Optical clarity: The transparent outer layer supports product visibility and glossy presentation.
Printability: Treated BOPET can support flexographic or gravure printing after ink-system validation.
Heat-seal functionality: The PE-based inner layer creates the seal to a compatible tray surface.
Custom peel behavior: The sealing layer can be adjusted for easy peel, medium peel, or stronger weld seal.
Functional upgrades: Anti-fog, barrier, printing, perforation, and selected heat-treatment capabilities can be incorporated.
Roll conversion: Width, length, core, winding direction, roll weight, and outer diameter can be matched to tray-sealing equipment.
BOPET/PE Top Sealing Film Manufacturer Capabilities
Custom film thickness: Nominal 0.06–0.10mm range with project-specific tolerance review.
Custom roll widths: Standard 150mm, 230mm, and 280mm widths plus custom slitting.
Custom roll configuration: Roll length, core inside diameter, maximum outer diameter, roll weight, and winding direction.
Seal performance development: Easy-peel, medium-peel, weld-seal, and application-specific sealing layers.
Printing services: Clear or custom-printed film for branding, instructions, coding areas, and traceability.
Functional structures: Anti-fog, standard barrier, high barrier, MAP, freezer-compatible, and selected heat-treatable grades.
Trial support: Tray-and-film compatibility review, sample rolls, and production-line testing.
Export supply: Custom cartons, roll labels, pallet marks, commercial terms, and international delivery.
Technical Specifications
The table below combines the current page information with the additional specifications normally required by food processors and packaging converters. Final guaranteed values should be confirmed in the approved technical data sheet and purchase order.
| Property |
Standard or Available Option |
Purchasing Note |
| Product Type |
BOPET/PE top sealing film / tray lidding film |
Supplied as rollstock for tray-sealing equipment |
| Material Structure |
BOPET outer layer laminated to PE-based sealing layer |
Exact layer ratio and sealant depend on the tray and application |
| Nominal Thickness Range |
0.06–0.10mm |
Confirm target gauge and manufacturing tolerance |
| Current Standard Widths |
150mm, 230mm, and 280mm |
Custom widths available according to tray and tooling layout |
| Standard Roll Length |
500m |
Custom length depends on core, roll weight, and maximum outer diameter |
| Appearance |
Clear; custom printing available |
Confirm haze, gloss, transparency, colors, and print coverage |
| Primary Tray Application |
Compatible CPET and selected PE-seal-surface trays |
Send the exact tray specification or sample |
| Seal Type |
Easy peel, medium peel, or weld seal |
Target peel force and failure mode should be agreed |
| Anti-Fog |
Optional |
Recommended for chilled and moisture-rich foods |
| Barrier |
Standard or high-barrier structure |
Specify OTR, WVTR, MAP gas mixture, and shelf-life target |
| Freezer Use |
Freezer-compatible grades available |
Validate low-temperature toughness and seal retention |
| Microwave / Oven Use |
Application-specific grades only |
Do not apply a universal 220°C claim to all BOPET/PE laminates |
| Printing |
Flexographic or gravure printing, subject to project requirements |
Confirm artwork, colors, repeat, eye mark, and annual demand |
| Core and Winding |
Customized |
Provide core ID, core length, seal side, and winding direction |
| Minimum Order Quantity |
500kg |
Trial quantities depend on available stock and conversion requirements |
| Typical Lead Time |
Approximately 10–14 working days |
Printed, high-barrier, or special thermal grades may require more time |
| Payment Terms |
T/T 30% deposit and 70% balance before shipment |
Confirm in the commercial quotation |
| Delivery Terms |
EXW, FOB, CIF/CNF, DDU, or door-to-door |
Subject to destination and shipment size |
How the BOPET/PE Laminate Works
| Layer |
Primary Function |
Buyer Consideration |
| BOPET Outer Layer |
Provides tensile strength, clarity, stiffness, dimensional stability, and a printable surface. |
Confirm thickness, treatment, shrinkage, haze, gloss, and ink compatibility. |
| Printing Layer |
Carries branding, product information, instructions, barcodes, and traceability. |
Confirm surface or reverse printing, ink system, colors, repeat, and thermal process. |
| Laminating Adhesive |
Bonds the BOPET layer to the sealing or barrier structure. |
Confirm curing, bond strength, migration, and heat resistance. |
| Optional Barrier Layer |
Controls oxygen, moisture, aroma, or MAP gas transmission. |
Specify OTR, WVTR, gas mixture, food type, and shelf-life target. |
| PE-Based Sealant Layer |
Creates the heat seal and controls peel or weld-seal behavior. |
Must be compatible with the actual tray flange. |
Available Top Sealing Film Grades
| Film Grade |
Primary Function |
Typical Application |
| Clear Standard Film |
General transparent top sealing for compatible trays. |
Ready meals, bakery, deli, and food-service packs. |
| Easy-Peel Film |
Controlled opening with reduced tearing, shredding, or residue. |
Retail ready meals and consumer convenience packaging. |
| Weld-Seal Film |
Stronger permanent seal and enhanced tamper evidence. |
Liquid foods, heavy products, and demanding distribution. |
| Anti-Fog Film |
Reduces condensation and improves visibility in chilled display. |
Chilled meals, meat, produce, bakery, dairy, and salads. |
| High-Barrier Film |
Reduces oxygen or moisture transmission for MAP and extended shelf life. |
Meat, poultry, seafood, prepared meals, and oxygen-sensitive foods. |
| Printed Lidding Film |
Adds branding, instructions, product information, and traceability. |
Private-label and branded food-packaging programs. |
| Heat-Treatable Grade |
Developed for specified reheating, pasteurisation, microwave, or oven cycles. |
Requires validation with the exact tray, food, temperature, and heating time. |
Tray Material Compatibility
The BOPET outer layer does not determine tray compatibility. The sealing layer must match the tray flange chemistry. Provide the tray supplier, resin, product code, drawing, or physical sample before commercial production.
| Tray Material |
Compatibility Guidance |
Typical Use |
| CPET |
Primary application for this page. Use a CPET-compatible sealing layer and validate the heating cycle. |
Frozen, chilled, microwaveable, and selected ovenable ready meals. |
| APET / RPET / PET |
Requires a PET-compatible sealing layer; anti-fog is frequently requested for chilled display. |
Meat, produce, bakery, deli, desserts, and chilled meals. |
| PET/PE |
A PE-based sealant may bond to the PE-coated tray surface after testing. |
Chilled food and prepared-food packaging. |
| PP |
Standard BOPET/PE should not be assumed to seal every PP tray; a PP-compatible sealant may be required. |
Microwave meals, dairy, dips, and prepared foods. |
| Aluminium or Coated Paperboard |
Custom sealant chemistry may be required according to the rim coating and heating process. |
Ready meals, bakery, and specialist packaging. |
Easy-Peel vs. Weld-Seal Performance
| Seal Type |
Opening Behavior |
Typical Use |
| Easy Peel |
Opens with controlled force and reduced tearing or residue. |
Consumer convenience and retail ready meals. |
| Medium Peel |
Provides stronger distribution security while remaining peelable. |
Catering, prepared meals, and heavier products. |
| Weld Seal |
Creates a strong permanent bond that may tear the film or distort the rim when opened. |
Liquid-containing products and tamper-evident packaging. |
Peel performance can change with sealing temperature, pressure, dwell time, tray formulation, rim cleanliness, filling temperature, freezing, storage, and reheating. Establish the acceptable sealing window and peel-force test method during line trials.
Anti-Fog, High-Barrier, and MAP Options
Anti-fog treatment helps prevent condensation from obscuring the packaged food in refrigerated display. High-barrier structures may incorporate EVOH or another functional layer to control oxygen transmission and retain a modified atmosphere.
For barrier projects, provide the food type, expected shelf life, storage temperature, package gas mixture, required oxygen transmission rate, water-vapor transmission rate, and any pasteurisation or reheating process.
Temperature Resistance and Ovenability
The current page describes broad freezer, microwave, and oven performance. These capabilities should be stated only for an approved application-specific grade. A standard BOPET/PE laminate should not automatically be treated as a 220°C ovenable film.
For heat-treatment projects, specify the maximum temperature, duration, whether the lid remains on the tray, food load, venting requirements, freezer or chilled storage, ink and adhesive requirements, and relevant food-contact regulations. Validate the completed tray-and-film package before launch.
Tray-Sealing Machine and Roll Compatibility
Top sealing film must match the unwind system and tooling of the tray sealer. Provide the machine brand and model, web width, paper-core diameter, maximum roll diameter, roll weight, winding direction, seal-side orientation, eye-mark sensor, cutting layout, and operating speed.
Before mass production, test film tracking, tension, cutting accuracy, seal continuity, peel force, leakage, burst strength, wrinkling, print registration, anti-fog performance, MAP gas retention, freezer performance, and microwave or oven performance when applicable.
Quality-Control Requirements
Thickness profile: Affects roll build, stiffness, seal performance, and web tracking.
Bond strength: Confirms the BOPET and PE layers remain securely laminated.
Surface treatment: Controls ink and adhesive adhesion on the BOPET surface.
Coefficient of friction: Influences unwinding, web transport, and machine speed.
Heat shrinkage: Important during printing, lamination, sealing, and reheating.
Seal strength and peel force: Must remain within the agreed operating window.
Optical quality: Includes haze, gloss, gels, black spots, scratches, and contamination.
Roll quality: Includes edge alignment, telescoping, wrinkles, joints, core condition, and winding direction.
Typical Applications
CPET ready-meal trays
Frozen and chilled prepared meals
Airline, railway, hospital, school, and institutional catering
Pasta, rice, meat, vegetable, and multi-compartment meals
Bakery products, desserts, deli foods, and prepared snacks
MAP packaging for meat, poultry, seafood, and prepared foods
Private-label products requiring custom printed lidding film
Food-service and contract-packing operations
Explore HSQY's CPET tray range and CPET sealing film solutions for compatible tray-and-film packaging systems.
Information Required for an Accurate Quotation
Provide the following information so HSQY can select the correct BOPET/PE structure, roll configuration, and sealing performance:
Tray material, supplier, product code, drawing, or physical sample
Tray outside dimensions, flange width, compartments, and fill weight
Tray-sealing machine brand, model, tooling layout, and operating speed
Required thickness, width, roll length, core ID, maximum outer diameter, roll weight, and winding direction
Easy-peel, medium-peel, or weld-seal requirement
Food type, filling temperature, storage temperature, and target shelf life
Freezer, microwave, conventional oven, MAP, hot-fill, pasteurisation, or retort process
Anti-fog, oxygen barrier, moisture barrier, printing, perforation, or venting requirements
Required food-contact, migration, quality, or destination-market documents
Trial quantity, annual volume, delivery destination, and requested launch date
Request BOPET/PE Film Samples and Pricing
Custom Manufacturing Services
Custom 0.06–0.10mm film thickness and tolerance
Custom 150mm, 230mm, 280mm, and non-standard roll widths
Custom roll length, paper core, roll weight, and outer diameter
Easy-peel, medium-peel, and weld-seal structures
Anti-fog, standard-barrier, high-barrier, MAP, freezer-compatible, and heat-treatable grades
Flexographic or gravure printing for branding and preparation instructions
Custom eye marks, print repeats, perforation, and winding direction
Tray-and-film compatibility review, samples, 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 documentation for the approved film grade. Buyers should request the technical data sheet, certificate of analysis, food-contact declaration, migration or compliance reports, safety data, roll inspection criteria, and destination-market documentation required for the exact structure.
ISO 9001 is a quality-management-system certification and should not be presented as product-specific proof of food-contact compliance. Recyclability should be evaluated for the complete tray-and-film package and the collection and recycling systems in the destination market.
![HSQY BOPET PE top sealing film certificates and quality documentation]()
HSQY International Exhibitions
Production and Packing
Packing and Delivery
Sample Packaging: Trial rolls are packed to reduce dust, moisture, scratching, creasing, and edge damage.
Bulk Roll Packing: Rolls are wrapped in PE film, kraft paper, cartons, or another suitable protective material.
Pallet Packing: Approximately 500–2000kg per plywood pallet may be used depending on roll dimensions and shipment conditions.
Roll Identification: Labels can show film grade, structure, thickness, width, length, lot number, seal side, winding direction, and production date.
Container Loading: Loading plans are calculated according to roll dimensions, pallet configuration, and container type rather than a universal fixed weight.
Delivery Terms: EXW, FOB, CIF/CNF, DDU, and door-to-door services can be discussed.
Lead Time: Generally 10–14 working days after specification and deposit confirmation, subject to structure, printing, quantity, and production schedule.
Frequently Asked Questions
What is BOPET/PE top sealing film?
It is a laminated lidding film with a BOPET outer layer for strength, clarity, and printability and a PE-based inner layer for heat sealing to a compatible tray surface.
What thicknesses can HSQY manufacture?
This product page targets nominal thicknesses from 0.06mm to 0.10mm. The final gauge and tolerance should be confirmed in the approved specification.
Which roll widths are available?
Standard widths include 150mm, 230mm, and 280mm. Custom widths, roll lengths, cores, winding directions, roll weights, and outer diameters can be evaluated.
Can BOPET/PE film seal every CPET tray?
No. CPET tray formulations and flange surfaces can differ. The film must be tested with the actual tray, sealing machine, food product, and thermal process.
Can BOPET/PE film seal APET, PET/PE, or PP trays?
Different tray materials may require different sealing layers. A CPET grade should not automatically be used for APET, PET/PE, PP, aluminium, or coated paperboard without compatibility testing.
Is easy-peel BOPET/PE lidding film available?
Yes. Easy-peel, medium-peel, and weld-seal versions can be developed. The target peel force and failure mode should be tested on the actual tray.
Is anti-fog BOPET/PE film available?
Yes. Anti-fog treatment can be supplied for chilled meals, meat, produce, bakery, dairy, and other moisture-rich foods.
Can HSQY supply high-barrier film for MAP?
High-barrier structures can be evaluated for MAP. Provide the target OTR, WVTR, gas mixture, food type, storage temperature, and required shelf life.
Can standard BOPET/PE film be used at 220°C?
It should not be assumed that every BOPET/PE laminate is suitable for 220°C. Oven use requires an application-specific structure validated with the exact film, tray, food, temperature, and heating duration.
Can the top sealing film be custom printed?
Yes. Flexographic or gravure printing can be evaluated for logos, graphics, product information, cooking instructions, barcodes, QR codes, and traceability.
Why does top sealing film leak?
Leakage may result from incompatible sealant chemistry, tray-rim contamination, incorrect temperature, insufficient pressure or dwell time, uneven tooling, film tension, tray deformation, or unsuitable storage conditions.
Which machine information should I provide?
Provide the tray-sealer brand and model, tooling layout, film width, core ID, maximum roll diameter, winding direction, operating speed, temperature, pressure, and dwell time.
What is the minimum order quantity?
The current stated MOQ is 500kg. Trial quantities depend on stock, film structure, width, printing, and conversion requirements.
How long is the production lead time?
Typical lead time is approximately 10–14 working days after deposit and final specification approval. Printed, high-barrier, or special thermal grades may require more time.
Can I request samples before bulk production?
Yes, subject to available materials and specification. Send the tray sample, dimensions, machine details, required film structure, storage conditions, and heating process.
About HSQY Plastic Group
HSQY Plastic Group supplies BOPET/PE top sealing films, PET and BOPET films, CPET, PET and PP food trays, plastic sheets, and related packaging materials for international B2B customers.
The team can support film-structure selection, roll conversion, printing, peel-force development, anti-fog and barrier selection, samples, production-line trials, inspection documents, export packing, and international delivery for food manufacturers, contract packers, packaging distributors, airline caterers, and institutional food-service suppliers.
Contact HSQY for BOPET/PE Lidding Film
