Identity Test
Hardness and density are fast and easily ascertained. Therefore, they are ideal for incoming goods inspection and testing.
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Hardness Test
The hardness test is probably the most applied and most common test method in the elastomer industry.
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Compression Set
This test indicates how much a seal or a material loses its recovery behaviour after predefined thermal stress.
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Compression Set at low temperatures
The crucial test for sealing materials at low temperatures: what remains of the recovery behaviour.
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Tension Set
The practical benefit of this test entails ascertaining the degree of cross linking of finished parts where a compression set test is not applicable.
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Tensile Tests
This test is not only about physical material properties, it can reveal a lot more.
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Immersion Tests
We conduct durability tests in oil, fuels, coolants, refrigerants, superheated steam and many more media.
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Heat Ageing
The thermal resistance of an elastomer ranks among its most important characteristics. However, there are different possibilities to check it.
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Ozone Resistance
Many elastomers may become cracked even under normal environmental ozone concentrations.
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Thermogravimetric Analyses
The thermogravimetric analysis is probably the most often applied analytical test for elastomer materials.
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Dimensional Inspection
That seals can be easily mounted and can function properly is closely related to their dimensional stability.
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Sortation according to given Tolerances
If the sealing measurements are not right and a remedy is needed urgently then there is only one thing to do – to sort once again.
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Visual Inspection
Due to the difficult processability the visual inspection constitutes an important safeguard.
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Stress Relaxation in Compression
During this test it is measured continually how the sealing force changes under the influence of temperature, medium and testing time.
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Tear Strength
Important test for dynamic seals and there can be enormous differences within a material group.
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Infrared Spectroscopy
In the final analysis this method shows the natural vibrations of organic molecules whereby, particularly with elastomers, functional groups can be detected.
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Differential Scanning Calorimetry (DSC)
This calorimetric test detects the thermodynamic glass transition of elastomers, i.e. the transition from energy elasticity to entropy elasticity.
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Rebound Resilience
Where elastomers are use as bumpers their self-heating caused by destroyed energy should stay as low as possible.
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Measurement of Electrical Properties of Elastomers
To avoid electrostatic charge or electrochemical degradation
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Pyrolysis GC-MS
The analysis method with the highest resolution to receive indications which ingredients elastomer samples have. For this a 1 mg sample is already sufficient.
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Failure Analysis
For the O-Ring Prueflabor Richter the failure analysis of elastomeric seals is one of its core competences.
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