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Home >> Application >> By Standard >> ASTM >> ASTM E-F >> ASTM F2824 Lid Peel Strength Test for Round Cups & Bowls

ASTM F2824 Lid Peel Strength Test for Round Cups & Bowls

ASTM F2824 Seal Strength Tester for Round Cups & Bowls with Peelable Lids | UnitedTest

ASTM F2824 standard test method measures mechanical seal peel strength of flexible peelable lids on rigid or semi-rigid round cups and bowls. UnitedTest manufactures ASTM F2824 compliant testing machines to capture full force-displacement curves for peak strength, average seal strength and total seal energy evaluation.

ASTM F2824 is an industry standard for mechanical seal strength testing of round cups and bowl containers fitted with flexible peelable lids. This test method quantifies the mechanical force required to fully peel the flexible lid, cover or membrane away from rigid or semi-rigid round cup and bowl packaging. The test records continuous force versus displacement data throughout the full peeling cycle, allowing laboratories to calculate average seal strength, peak maximum strength, and total work or energy absorbed over the complete seal perimeter, instead of testing only a small cut strip sample.

This packaging seal test is widely applied for food packaging, pharmaceutical containers, disposable cup lidding, ready meal bowls and other sealed packaging quality control. It helps packaging material manufacturers, food processors and packaging labs assess seal consistency, optimize heat sealing parameters and verify lid membrane bonding performance.

UnitedTest designs and manufactures ASTM F2824 seal strength testing machines. Our precision test systems record continuous force and displacement data to deliver reliable perimeter seal performance results for packaging R&D, incoming material inspection and production quality assurance.

Test Principle

The whole flexible lid is peeled completely off a fixed round container under a constant peel rate and controlled peel angle (preferred 45°). Continuous force‑displacement curves are recorded. From these curves, testers calculate average seal strength, maximum seal strength, and peel work (peeling energy). It evaluates seal uniformity across the full circular sealing perimeter of the cup or bowl. Unlike partial‑strip peel tests, this method replicates real‑world consumer opening behaviour of full‑lid removal.

The key difference vs. ASTM F88: F88 tests a portion/strip of a flexible barrier seal; F2824 tests removal of the whole lid from the rigid/semi‑rigid round container, which better represents real opening behavior

ASTM F2824 Lid Peel Strength Test for Round Cups

Test Specimen Specifications

Specimen type: Sealed round rigid / semi‑rigid cups or bowls with factory‑sealed flexible peelable lids (foil, multi‑layer plastic film etc.).

Sampling rule: Sample size follows statistically‑validated sampling plans. Each specimen shall be uniquely identifiable to trace test anomalies back to individual units.

Test Equipment of ASTM F2824 Lid Peel Strength Test for Round Cups & Bowls

CRE Universal Testing Machine (UTM)

Constant‑rate peel testing machine (tensile tester) capable of steady pulling motion.

Force‑measuring transducer accuracy within ±1 % of full‑scale range, with high‑frequency data sampling to plot continuous force‑versus‑displacement graphs (digital or analog X‑Y recorder is acceptable).

Appropriate grip/clam: firmly holds the lid’s peel tab without slippage or lid tearing.

ASTM F2824 Lid Peel Strength Test for Round Cups

Specially designed container‑holding fixture

Rigid clamping to lock the round cup/bowl so it cannot shift or rotate during peeling; the fixture maintains constant 45° peel angle throughout the full lid‑peel travel.

Mandatory Test Parameters & Stipulations:

Preferred peel angle	45°; alternative angles allowed only with documentation and method validation.
Grip separation (peel) speed	12 ± 0.5 in/min (300 ± 12.7 mm/min).
Force‑gage accuracy	±1 % full scale of the measuring device.
Main output metrics	Average seal strength, maximum seal strength, work (peeling energy from area under force‑displacement curve).

The container must be secured absolutely stationary inside the fixture; any container movement will corrupt force readings.

Peel line must bisect the circular seal area evenly, starting from the lid’s peel tab (starting‑peel‑point).

Standard Test Procedure

Verify calibration status of the force‑measuring apparatus before starting tests.
Orient the specimen: identify the peel line of the round container; fasten the cup/bowl firmly in the fixture. Align the lid’s starting peel tab so peeling proceeds exactly along the defined peel line.
Clamp the lid’s peel tab securely in the machine grip, avoiding tearing or slipping of lid material.
Set peel rate to 12 ± 0.5 in/min (300 ± 12.7 mm/min), then initiate the test run. The lid is peeled fully away at maintained 45‑degree peel angle.
Record force‑versus‑displacement data throughout the entire lid‑removal cycle.
Complete one specimen, remove the tested sample, repeat for replicate specimens to finish the test series.

Industry Fields & Applications

ASTM F2824 applies to packaging industries producing round sealed‑lid containers, including:

- Food industry: yoghurt cups, coffee capsules, creamer cups, ready‑meal bowls;

- Household‑goods packaging (household freshener containers);

- Chemical and pharmaceutical sealed cups or bowls with peelable lids.

It is mainly used for quality‑assurance checks, seal‑performance evaluation, sealing‑process optimization and packaging‑design validation for peel‑lid round containers

Importance of ASTM F2824 Test for Packaging Materials

1. Real‑use simulation: Unlike strip‑specimen F88 tests, F2824 reproduces the actual consumer opening action of peeling the full lid off an intact round container, generating more application‑relevant performance data for finished packaged products.

2. Assess seal uniformity: The full‑perimeter force curve reveals local high‑force spots or weak spots around the circular seal, helping detect inconsistent heat‑sealing quality that small strip‑sampling may miss.

3. Balance two conflicting requirements for peel‑lid packaging:

- Seal must be robust enough to resist accidental opening during transport, storage and handling to preserve product integrity, sterility and shelf‑life;

- Seal must remain comfortably peelable for end‑users without excessive opening force or lid‑tearing failure.

4. Supports quality‑control batch release, new‑material screening, sealing‑process parameter tuning, and comparative evaluation between lid/container material combinations for round peel‑lid packaging systems.

Related Test Standard:

ASTM F88	Seal‑strength test on cut seal strips of flexible barrier materials. This is the most closely‑related standard. The critical difference: ASTM F88 tests small cut seal segments, while ASTM F2824 peels the complete whole lid off an intact round container assembly
ISO 11607‑1	Packaging for terminally sterilized medical devices Part 1: Requirements for materials, sterile barrier systems and packaging system
ASTM F2824	Standard Test Method for Mechanical Seal Strength Testing for Round Cups and Bowl Containers with Flexible Peelable Lids
DIN SPEC 91441 E:2019-06	Packaging - Test method for determination of the peel strength of sealable packaging materials
JSA JIS Z 0238	Test methods for heat-sealed flexible packaging and semi-rigid containers

Keywords: ASTM F2824 seal strength tester,peelable lid cup bowl seal test machine,flexible lid mechanical seal strength test rig,round container peel seal testing equipment,force displacement seal analyzer,full perimeter packaging seal strength tester,rigid semi-rigid cup peel lid test instrument,food packaging seal peel force machine,ready meal bowl seal performance tester,packaging heat seal quality control system,pharmaceutical cup container seal test apparatus,peel membrane packaging bond strength tester

Related products and device

ASTM F2824 Round Cups & Bowls Lid Peel Strength Test universal testing machine

WDW Series Computer Control Electronic Universal Testing Machine made by UNITEDTEST range from 100N to 600KN load capacity with various models like single columns, table type, door frame type etc., is used to perform tension, compression, flexure/bending, shearing, peeling etc., test for metal and nonmetal specimens.

ASTM F2824 flexible lid mechanical seal strength test rig

T-Peel Resistance Test Fixture for Adhesives is based on ASTM D1876 standard, used to measure the adhesion strength of adhesive maeterial. ASTM D1876 peel strength test method is commonly used to measure the strength of adhesive bonds between two sealed materials.

full perimeter packaging seal strength tester

Adhesion strength 90 degree peeling test fixture is a professional device used to measure the peel strength of adhesives at a 90° angle. It evaluates the resistance of the bonded interface to peeling by simulating a vertical peeling scenario.

Related Standard

ISO 11339 T-peel test for Adhesives –

ISO 11339 Adhesives — T-peel test for flexible-to-flexible bonded assemblies.

It specifies a T‑peel test for the determination of the peel resistance of an adhesive by measuring the peeling force of a T‑shaped bonded assembly of two flexible adherends. The ISO 11339 test method is suitable for self-adhesive tapes that are prepared under the relevant guidelines within this test standard. For a T-peel test for a flexible-to-flexible assembly, the force is applied to the unbonded ends of the specimen . The angle between the bond line and the direction of the applied force is not fixed.

ASTM D1876 T-Peel Resistance Test of Adhesives –

ASTM D1876: Standard Test Method for Peel Resistance of Adhesives (T-Peel Test)

ASTM D1876 evaluates the relative T‑peel resistance of adhesive joints made of two flexible adherends. A T‑shaped test piece is pulled apart under constant‑rate tension to measure the force required to progressively separate the bonded interface. This method focuses on peel‑mode failure rather than shear‑mode failure of adhesive bonds.

ASTM D3330 tape peeling test, Method for Peel Adhesion of Pressure-Sensitive Tape –

ASTM D3330 Standard Test Method for Peel Adhesion of Pressure-Sensitive Tape

ASTM D3330 for measuring peel adhesion of all types of pressure-sensitive adhesive (PSA) tapes, unifies six distinct test geometries to characterize interfacial bonding strength between PSA tape and substrates, tape backings, release liners, and transfer adhesive films, covering both 180° and 90° peel angles.

ASTM D3167 Peel Resistance Adhesives Test - Floating Roller –

ASTM D3167 Peel Resistance Adhesives Test - Floating Roller

ASTM D3167 determines the relative peel resistance of adhesive bonds between one rigid adherend and one flexible adherend under specified preparation and testing conditions. It is designed to give good reproducibility at both low‑ and high‑strength levels while keeping specimen preparation and testing relatively simple. Although the introduction emphasizes “metal‑to‑metal peel strength,” the scope covers rigid‑to‑flexible adhesive assemblies in general; the default/reference material in the method is clad aluminum.

The method is used for acceptance testing and process control and can be used as an alternative to ASTM D1781 (climbing drum peel) when that equipment is not available. ASTM notes D3167 is “more severe” because the peel angle is greater.

ISO 8510-2 Adhesives 180 degree peel test for flexible-bonded-to-rigid test specimen assembly –

ISO 8510-2: Adhesives — Peel test for a flexible-bonded-to-rigid test specimen assembly Part 2: 180° peel.

ISO 8510-2 specifies a 180° peel test for determining the peel resistance of a bonded assembly where one adherend is flexible and the other is rigid. Measures the peel resistance of structural liquid adhesive bonds where one adherend is flexible and the other rigid. It only applies to cured structural adhesives (epoxy, PU, wood glue, contact adhesives) – not pressure-sensitive adhesive tapes. It provides repeatable comparative peel force data for R&D, factory quality control, supplier qualification and commercial dispute resolution.

ISO 29862 Tape adhesion peeling test, Self adhesive tapes –

ISO 29862 Self adhesive tapes — Determination of peel adhesion properties

ISO 29862 specifies peel adhesion force of pressure-sensitive adhesive (PSA) tapes under controlled laboratory conditions. It covers four core 180° peel test methods plus two normative annexes for low-temperature and 90° peel testing, serving as a universal quality control and material comparison benchmark for adhesive tape manufacturers, laboratories and end users worldwide.

ISO 6383-2 Plastic film Elmendorf tear test –

ISO 6383-2 Plastics — Film and sheeting — Determination of tear resistance — Part 2: Elmendorf method

ISO 6383-2 specifies the Elmendorf pendulum method to measure the force required to propagate an existing pre-cut slit across thin flexible plastic film and sheeting under standardized loading conditions.

ASTM D1204 Plastic Films Dimensional stability testing at high temperature –

ASTM D1204 Standard Test Method for Linear Dimensional Changes of Nonrigid Thermoplastic Sheeting or Film at Elevated Temperature

ASTM D1204 is method to measure linear dimensional change (shrinkage or expansion) of nonrigid thermoplastic sheeting/film when exposed to a specified elevated temperature and time in air. Applies to nonrigid thermoplastic sheeting/film made by calender or extrusion processes, the heating medium is air (mechanical convection oven) — this points is the fundamental difference from ASTM D2732 (liquid bath).

ISO 527-3 Tensile Test on Plastic Film –

ISO 527-3 Plastics - TENSILE PROPERTIES - PART 3: FOR FILMS AND SHEETS

ISO 527-3 specifies the test conditions for determining the tensile properties of plastic films and sheets with a thickness less than 1 mm, based on the general principles of ISO 527-1. Provides standardized procedures to measure critical mechanical parameters including tensile strength, yield strength, elongation at break, and Young's modulus for thin plastic materials. It is critically important because thin films behave very differently under stress compared to rigid plastics; they are more prone to tearing, slipping, and deformation. By standardizing the test conditions, this document ensures that material specifications, quality control, and research data are globally comparable and reliable. Specimen created following ISO 527-3 can be used to determine the tensile properties of thin plastic sheets and films including the tensile modulus of elasticity and the tensile energy to break (TEB).

ISO 304 Surface tension test by drawing up liquid films, surface active agents –

ISO 304:1985 Surface active agents — Determination of surface tension by drawing up liquid films

The maximum force is measured which is necessary to act vertically on a stirrup or a ring, in contact with the surface of the liquid being examined placed in a measuring cup, in order to separate it from this surface, or on a plate with an edge in contact with the surface, in order to draw up the film that has formed. The surface tension of pure liquids or other solutions can also be measured by this method.

ASTM D1922 Elmendorf Tear Test for plastic films and thin sheeting tear resistance –

ASTM D1922: Standard Test Method for Propagation Tear Resistance of Plastic Film and Thin Sheeting by Pendulum Method.

ASTM D1922 defines a laboratory method to measure the average force required to propagate (continue) a tear through a plastic film or non-rigid thin sheeting, after the tear has already been started. The test uses an Elmendorf-type pendulum tearing tester. It is applicable to plastic film (arbitrarily defined as sheeting ≤ 0.25 mm / 0.010 in.) and thin non-rigid sheeting, and is equivalent to ISO 6383-2.

ASTM D1004 Tear Resistance (Graves Tear) of Plastic Film and Sheeting –

ASTM D1004: Standard Test Method for Tear Resistance (Graves Tear) of Plastic Film and Sheeting

ASTM D1004 is a test method that determines the tear strength of flexible plastic film and sheeting at very low rates of loading using a constant-rate-of crosshead-movement type tensile testing machine. Tearing is produced in a small area of stress concentration of the plastic film or sheeting specimen at controlled speeds below the rate encountered in real world applications in order to produce the most reliable data, which can be used to compare and analyze the tear resistance. Actual use of performance in tearing of certain plastics may not necessarily corralate with the data acquired from this test method. The specimen geometry of this test method produces a stress concentration in a small area of the specimen. The maximum stress, usually found near the onset of tearing, is recorded as the tear resistance in newtons (or pounds-force). The method is not applicable for film or sheeting material where brittle failures occur during testing or where maximum extension is greater than 101.6 mm (4 in.).

ASTM D906 Tensile Shear Test for Plywood Adhesive Bonds –

ASTM D906 Standard Test Method for Strength Properties of Adhesives in Plywood Type Construction in Shear by Tension Loading

ASTM D906 specifies a tensile-loading method for determining the comparative shear strength of wood-to-wood adhesives in plywood-type (three-ply cross-laminated) construction. It measures comparative shear strength of wood-to-wood adhesives exclusively for cross-laminated plywood-style three-ply veneer assemblies. Not designed for finished consumer wood products or parallel single-grain laminated joints.

ASTM F2824 Lid Peel Strength Test — Frequently Asked Questions (Q&A)

Q1: What is ASTM F2824 test for?

A1: ASTM F2824 is a full‑lid mechanical seal strength test standard for round rigid/semi‑rigid cups and bowls with flexible peelable lids (foil, multi‑layer plastic film). Instead of cutting small seal strips, it peels off the entire complete lid and records continuous force‑displacement curve, calculating average seal strength, maximum seal strength and peel work (peeling energy) for quality control and packaging performance validation.

Q2: Why is ASTM F2824 important for packaging material and finished containers?

A2: Real‑world consumer opening behaviour is fully simulated by peeling the whole lid, not partial seal strips.

Detects circumferential seal non‑uniformity, weak spots or over‑seal defects around circular sealing perimeter that strip‑based tests (ASTM F88) may miss.

Balances two critical requirements: seal strong enough to resist accidental opening during transit/storage; meanwhile maintain comfortable peel force for end‑users without lid tearing or delamination failure.

Supports sealing process tuning, new lid‑container material matching, batch QC release and packaging complaint root‑cause analysis for yogurt cups, coffee capsules, ready‑meal bowls, pharmaceutical cups etc.

Q3: What is the core difference between ASTM F88 and ASTM F2824? Can I replace F2824 with ASTM F88?

A3: ASTM F88 tests cut small seal strips from packaging samples; it only reflects seal performance of that small local segment. ASTM F2824 peels the whole intact lid from full round container assembly, evaluating complete circular seal perimeter under real opening geometry (preferred 45° peel angle). You cannot fully replace ASTM F2824 with ASTM F88. F88 works for material‑level screening; F2824 is for finished container assembly validation. Many packaging programs run both standards for complete assessment.

Q4: Can I test oval / rectangular / multi‑cavity trays under ASTM F2824 scope?

A4: Strictly speaking, ASTM F2824 official scope applies only for round cups & bowls. The standard mentions that oval, rectangular or multi‑cavity sealed containers may use similar test setup, but those modified tests are outside the formal F2824 scope and must be validated separately and fully documented in reports.

Q5: Why cannot I use a general universal tensile tester without special fixture for ASTM F2824?

A5: General UTM without dedicated fixture cannot maintain constant 45° peel angle during the full circular lid‑peel cycle, and cannot rigidly lock round cup/bowl sample to eliminate container shifting or rotation during peeling. Any small container movement will cause large deviation for force readings, making data invalid against ASTM F2824 requirements. The dedicated fixture must guarantee stable 45‑degree geometry all through lid removal travel.

Q6: What common defects can ASTM F2824 peel‑curve help diagnose?

A6: Under‑seal: low overall peel‑force values across seal path, risk of accidental opening / leakage in logistics.

Over‑seal: high maximum force, frequent lid‑film tearing during peeling, consumer‑complaint for hard‑opening.

Circumferential inconsistent seal strength: repeated sharp force peaks & valleys on force‑distance curve, indicating uneven heat‑seal pressure, temperature fluctuation or seal‑ring contamination on sealing machine.

Q7. What specimens are used?

A: Round rigid/semi-rigid cups or bowls with a flexible peelable lid. If the lid has an extended tab/starting peel point, use it. Sample size should follow a statistically validated sampling plan. Each sample must be identifiable for traceability.

Q8. How does UnitedTest help with F2824 compliance?

A: UnitedTest supplies constant-rate peel/lid-seal testers, 45° cup-lid peel fixtures, load cells, clamping systems, and software for average/max/peak/work reporting. Machines can be configured for 300 mm/min, calibrated force measurement, and full force-displacement curves to support ASTM F2824, ASTM F88, and related packaging seal tests.

A9: Why choose ASTM F2824 Mechanical Seal Strength Testing Machine from UnitedTest?

A: UnitedTest manufactures ASTM F2824 seal strength testing machine for round cups and bowls with flexible peelable lids. Complete‑lid 45° peel test fixture, meets 300 mm/min peel speed requirement for food, pharma and consumer‑goods packaging QA & R&D.

UnitedTest ASTM F2824 tester is professional test instrument complying fully with ASTM F2824‑10 (Reapproved 2020) standard, designed for mechanical seal‑strength measurement by peeling the entire flexible lid/membrane off rigid or semi‑rigid round cups and bowls.

Different from traditional strip‑peel test following ASTM F88, UnitedTest F2824 testing system simulates real‑consumer full‑lid opening process, maintains constant 45‑degree peel angle throughout complete peeling travel and runs at standard peel speed of 12 in/min (300 mm/min). It captures full force‑versus‑displacement curve, automatically calculates average seal strength, maximum seal strength and peel work energy for packaging quality‑control labs, R&D departments and third‑party testing laboratories.

Our dedicated custom fixture firmly clamps round containers and eliminates sample shifting or rotation during test to guarantee high repeatability of test data. High‑precision load cell achieves ±1 % full‑scale measurement accuracy as required by ASTM F2824. Software supports one‑click export of test reports that fulfill standard reporting requirements including peel‑angle record, sample info, abnormal‑event logging and all key seal‑strength metrics.

Typical applications & industries:

Food packaging: yogurt cups, coffee capsules, creamers, ready‑meal bowls
Pharmaceutical & chemical sealed round containers
Household‑freshener peel‑lid cup‑bowl packaging
Packaging material R&D, heat‑sealing process validation, batch incoming‑quality inspection, finished‑product release testing.

UnitedTest provides complete ASTM F2824 test solution including main tester unit, standard 45° peel fixture, replaceable cup‑holding inserts for different container diameters, test‑reporting software and on‑site commissioning service. We also offer custom modification for non‑round containers (oval / multi‑cavity trays) for similar peel‑strength evaluation.

Related standards supported on same UnitedTest platform: ASTM F88, ASTM D4332, ASTM E177.

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