Testing of adhesives

Adhesives are tested to ensure their quality, safety, reliability and suitability for specific applications. Testing is essential in many industries and applications, as it ensures that adhesives meet the expected requirements and standards. An essential reason for testing adhesives is to ensure their adhesion and strength. Adhesive strength is one of the most important properties of an adhesive, and testing ensures that it bonds the desired materials securely and permanently under various conditions, such as stress, temperature or humidity.

Last but not least, adhesives are tested for their long-term durability, for example by means of aging or stress tests, which show how long an adhesive retains its properties under certain conditions. This is particularly important for applications that require a high level of durability. Overall, the testing of adhesives is an important step in ensuring performance, safety and suitability for the intended applications, thus ensuring customer satisfaction and regulatory compliance.

Thomas Sulzer

Project manager | Construction products

+49 931 4104-392

t.sulzer@skz.de

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Typical types of adhesives for plastics

Important test methods for adhesives

Tensile test

Measures the maximum tensile force that a bonded component can withstand before it breaks, and assesses the integrity of the bond

Shear strength test

Measures the strength of the adhesive bond under shear stress; crucial for applications with dominant shear forces

Peeling test

Measures the adhesive strength of an adhesive by the force required to detach a joint at the peel angle

Climate resistance test

Tests the resistance of the adhesive bond against environmental conditions such as humidity, temperature changes and UV radiation

Heat resistance test

Determines the ability of the adhesive to withstand high temperatures without losing its adhesive properties.

Chemical resistance

Tests how the adhesive reacts when it comes into contact with various chemicals that it might be exposed to during its service life

Aging test

Assesses how the adhesive bond changes over time under different conditions

Standards

We offer the following tests:

DIN EN 1464
Adhesives – Determination of the peel resistance of bonds –
Roll peel test Tensile tests 3
DIN EN 1465
Adhesives – Determination of the tensile shear strength of lap joints Tensile tests
DIN EN 14680
Adhesives for non-pressure thermoplastic piping systems –
specifications (here: sections 4, 5 and 6.2)
DIN EN 14814
Adhesives for pressure piping systems made of thermoplastic
materials for fluids - specifications (here: sections 4, 5 and 6.2)
DIN EN 28510-1
Adhesives - Peeling test for flexibly/rigidly bonded samples –
Part 1: 90° peel test
DIN EN ISO 11339
Adhesives – T-peel test for bonded joints with flexible adherends
DIN EN ISO 8510-2
Adhesives – Peel test for flex-rigid bonded samples –
Part 2: 180° peel test
DIN EN ISO 9311-3
Adhesives for thermoplastic piping systems –
Part 3: Test method for internal pressure strength