Hardness and density are fast and easily ascertained. Therefore, they are ideal for incoming goods inspection and testing.
The hardness test is probably the most applied and most common test method in the elastomer industry.
This test indicates how much a seal or a material loses its recovery behaviour after predefined thermal stress.
The crucial test for sealing materials at low temperatures: what remains of the recovery behaviour.
The practical benefit of this test entails ascertaining the degree of cross linking of finished parts where a compression set test is not applicable.
This test is not only about physical material properties, it can reveal a lot more.
We conduct durability tests in oil, fuels, coolants, refrigerants, superheated steam and many more media.
The thermal resistance of an elastomer ranks among its most important characteristics. However, there are different possibilities to check it.
Many elastomers may become cracked even under normal environmental ozone concentrations.
The thermogravimetric analysis is probably the most often applied analytical test for elastomer materials.
That seals can be easily mounted and can function properly is closely related to their dimensional stability.
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.
Due to the difficult processability the visual inspection constitutes an important safeguard.
During this test it is measured continually how the sealing force changes under the influence of temperature, medium and testing time.
Important test for dynamic seals and there can be enormous differences within a material group.
In the final analysis this method shows the natural vibrations of organic molecules whereby, particularly with elastomers, functional groups can be detected.
This calorimetric test detects the thermodynamic glass transition of elastomers, i.e. the transition from energy elasticity to entropy elasticity.
This test shows the behaviour of an elastomer during the whole defrosting process by means of a thermomechanical measurement method.
Where elastomers are use as bumpers their self-heating caused by destroyed energy should stay as low as possible.
To avoid electrostatic charge or electrochemical degradation
The analysis method with the highest resolution to receive indications which ingredients elastomer samples have. For this a 1 mg sample is already sufficient.
For the O-Ring Prueflabor Richter the failure analysis of elastomeric seals is one of its core competences.