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Home >> Products >> Test Fixtures >> Peeling test >> T-Peel Resistance Test Fixture for Adhesives

T-Peel Resistance Test Fixture for Adhesives

ASTM D1876

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, especially the closure seal of a sterile barrier package, such as a pouch or tray. The test is conducted by first cutting a 1″ wide specimen from the package. The specimen is then inserted into the jaws of a test stand such as an Inston, with one half of the material in the top jaw and the lower half of the material in the bottom jaw. The test stand then automatically moves the opposing jaws apart, causing the seal between them to peel apart at a constant rate of speed. A load cell measures the force required to fully separate the seal.

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

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

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

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General introduction

UnitedTest manufactures high-performance T-Peel Resistance Test Fixture for Adhesives, engineered in strict compliance with ASTM D1876 standard to accurately evaluate adhesive adhesion strength.

The ASTM D1876 peel strength test method is widely adopted for testing adhesive bond strength between two sealed materials. It is especially critical for assessing closure seals of sterile barrier packaging, including pouches and trays.

For the T-peel test procedure: Test operators first cut 1-inch wide specimens from target packaging samples. Specimens are mounted onto tensile testing equipment such as Instron universal testing machines using the T-Peel test fixture. One section of the sample is secured in the upper jaw, and the remaining portion is clamped within the bottom jaw. The testing machine drives the two jaws apart at a constant speed to initiate controlled peeling of the sealed joint. A precision load cell captures the force needed to completely separate the sealed interface.

Per ASTM D1876 specifications, bent, unbonded ends of T-peel specimens shall be secured inside tension tester grips. The standard crosshead test speed is set at 254 mm (10 inches) per minute to apply tensile load, generating a steady peeling rate of 127 mm (5 inches) per minute along the bonded interface.

During ASTM D1876 T-peel testing, the system generates an autographic curve plotting load against crosshead displacement or peeled distance. To calculate accurate peel resistance values of the bond line, data shall be collected over a minimum length of 127 mm (5 inches) after excluding the initial peak force region.

UnitedTest’s ASTM D1876 T-Peel Resistance Test Fixture delivers reliable, repeatable peel strength results for adhesive layers and sterile packaging seal quality verification.

T-Peel Resistance Test Fixture for Adhesives

Key Features

Standard
Key Advantages
Keywords
Core Design & Structure
Primary Testing Applications
Test Operation with UnitedTest T-Peel Fixture

lated Test Standard:

ISO 29862 Self adhesive tapes — Determination of peel adhesion properties

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

ASTM D3654 Standard Test Methods for Shear Adhesion of Pressure-Sensitive Tapes

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

JIS Z 0237 Testing methods of pressure-sensitive adhesive tapes and sheets

LST EN 1939 Self adhesive tapes - Determination of peel adhesion properties

GBT 2792 Measurement of peel adhesion properties for adhesive tapes

EN 12481 Self adhesive tapes – Terminology

ISO 29863 Self adhesive tapes – Measurement of tack (initial quick-stick tack test, complements peel adhesion for full PSA property profiling)

ISO 29864 Self adhesive tapes – Measurement of tensile strength and elongation (measures tape backing mechanical strength, paired with peel test for full product performance evaluation)

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

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

PSTC-1 USA Pressure Sensitive Tape Council: North American mainstream peel test standard, similar 180° peel mechanism but differs in roller mass and conditioning timeline

FINAT Test Method: Liner release adhesion test for label stock, shares interface testing logic with ISO 29862 Method 4

Strictly engineered to meet all dimensional and functional requirements of ASTM D1876

Self-aligning mechanism minimizes eccentric loading, improving testing repeatability

Anti-slip serrated jaws avoid specimen slip without damaging thin packaging materials

Interchangeable grip inserts available for ultra-thin films or thicker composite samples

Easy installation, quick specimen replacement to boost laboratory testing efficiency

Compatible with tabletop and floor-standing universal tensile testers from mainstream manufacturers

Comes with calibration reference drawings and operation guidance for laboratory audit.

T-Peel Resistance Test Fixture for Adhesives, ASTM D1876 T-peel test, sterile barrier packaging seal test, adhesive bond peel strength test, universal testing machine T-peel fixture, T-peel test for thin flexible metal adhesive assemblies, comparative adhesive bond performance laboratory tester, flexible substrate adhesive peel strength evaluation machine, flexible bonded joint quality control T-peel testing instrument

Our ASTM D1876 T-peel fixture consists of two independent clamping assemblies (upper jaw set and lower jaw set). The two clamping units can freely align horizontally and vertically to eliminate side load during peeling. This self-aligning structure prevents specimen slippage and twisting, ensuring pure tensile-peel loading as required by ASTM D1876.

Clamping surfaces: Serrated anti-slip grips to firmly hold thin flexible specimens, films, packaging pouches and tray seal samples

Adjustable clamping width: Accommodates standard 1-inch wide test specimens specified in ASTM D1876

Connection interface: Standard adapter compatible with most UTM load cell mounting ends

Material: High-strength alloy steel with anti-corrosion surface treatment for long-term laboratory use

The T-Peel Resistance Test Fixture for Adhesives serves multiple industrial quality control and R&D scenarios:

Peel strength measurement of adhesive-bonded flexible substrates

Seal integrity testing of sterile barrier packaging: medical pouches, blister packs, rigid trays

Evaluation of laminate bonding performance between films, foils and composite materials

Comparison of different adhesive formulations, surface treatment and sealing process parameters

Batch quality inspection and material qualification testing following ASTM D1876 requirements

Following ASTM D1876 protocols:

Prepare test specimens cut to 1 inch width; reserve bent, unbonded free ends for clamping

Mount the fixture onto the universal testing machine; install one free end of the specimen into the upper grip and the other unbonded end into the lower grip, forming a T-shaped configuration

Set the crosshead speed at 254 mm/min (10 in/min) as defined by ASTM D1876

Start the tensile test. The tester separates the two grips at constant speed, creating a steady peel rate of 127 mm/min along the bonded interface

The built-in load cell continuously records force data. Software generates load vs displacement curves

Valid peel resistance results are calculated using data collected over at least 127 mm peeling distance after excluding the initial peak force

Main technical specification

Clip dimensions: 80x40MM

Holding thickness: 30MM

Connecting thread: internal M12

Overall dimensions: 170x160x80MM

Net weight: 5KG

Standard

ISO 252 Conveyor belts Elements Adhesion Strength Peeling Test –

ISO 252 specifies two test methods (A and B) for measuring adhesion strength between the constituent layers of conveyor belts: between top/bottom covers and carcass, and between individual plies.

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.

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.

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.

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.

ASTM D1876 T-Peel Resistance Test of Adhesives –

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

ASTM D1876 test method is primarily intended for determining the relative peel resistance of adhesive bonds between flexible adherends by means of a T-type specimen using a tension testing machine. The bent, unbonded ends of the test specimen shall be clamped in the test grips of the tension testing machine and a load of a constant head speed shall be applied. An autographic recording of the load versus the head movement or load versus distance peeled shall be made. The peel resistance over a specified length of the bond line after the initial peak shall be determined.

ASTM F88 Test Method for Seal Strength of Flexible Barrier Materials –

ASTM F88 Standard Test Method for Seal Strength of Flexible Barrier Materials

ASTM F88 quantify the seal strength of flexible barrier packaging materials. It evaluates thermal heat-sealed or adhesive-bonded joints between flexible-flexible, flexible-rigid, or flexible-semi-rigid substrates by peeling cut test strips and recording separation force and failure modes.

ASTM D5656 Thick-Adherend Metal Lap-Shear Test for Adhesive Shear Stress-Strain Behavior –

ASTM D5656 Standard Test Method for Thick-Adherend Metal Lap-Shear Joints for Determination of the Stress-Strain Behavior of Adhesives in Shear by Tension Loading

ASTM D5656 designed to measure the full shear stress-strain curve of structural adhesives using thick, rigid metal lap-shear adherends. Its core output is intrinsic adhesive shear material properties (modulus, yield knee, linear limit, ultimate shear), not just joint apparent shear strength.