Rubber cork
Rubber cork is a cork granulate-rubber mixture, which is bound with PU. It is manufactured in a multi-stage process in which the natural cork is combined with the rubber granules under the influence of a PU binder. Rubber cork is considered a natural and recyclable sealing material mainly thanks to its ecological and environmentally friendly production. Due to the high rubber content, the highly elastic and resistant material can be assigned to the group of elastomer seals.
Available rubber cork materials at Rehm Dichtungen Ehlers GmbH
The PU-bonded cork granulate-rubber mixture is available to us in various material thicknesses. We source all our rubber cork from Europe.
Rubber cork
Technical data sheet:
Properties:
| Tensile strength [KPa] | ISO 7322 | >=900 |
| Specific gravity [kg/m³] | ISO 7322 | Approx. 650 |
| Springback [%] | ISO 7322 | >=75 |
| Temperature range [°C] | -20 - + 100 |
The properties of rubber cork as a sealing material
Even though rubber cork exists in various mixing ratios, the material has a large number of basically identical properties. The cork granulate-rubber mixture is characterised by good acid and weather resistance as well as limited resistance to ozone and alkalis. Compared to other sealing sheets, rubber cork is abrasion-resistant due to its composition. The material also has a high density and mechanical resilience, which make it possible to isolate air and sound noise. For this reason, the material is used as a vibration-insulating sealing material, among other things for impact sound insulation. Another advantage is the material's compressive strength and dimensional stability.
The advantages and material properties at a glance
Rubber cork seals and rollers are characterised by the following advantages:
- Good acid resistance
- Good weather resistance
- Conditional resistance to ozone and alkalis
- Abrasion and pressure resistant
- Thermally insulating
- Sound and heat insulating
In summary, rubber cork is resistant to various thermal and mechanical loads. This makes the sealing material suitable for a wide range of applications as a sound-absorbing and thermally insulating sealing material.
Areas of application for rubber cork seals
The gasket material is used in many areas and industries. The material is available in rolls. As a gasket manufacturer, we primarily cut these into flat gaskets as required.
The material is preferably used as impact sound insulation. Due to its high specific weight and high degree of insulation, the sealing material can also be used as thermal insulation. Due to its dimensional stability and high elasticity, rubber cork compensates for uneven floors and can therefore be used as an underlay for almost all floors.
We will be happy to answer whether rubber cork is also suitable for your purposes. Please contact our customer service, who will be happy to provide you with comprehensive advice.
FAQ
What is rubber cork?
Rubber cork is a cork granulate-rubber mixture that is bonded with polyurethane. Due to its high rubber content, it belongs to the group of elastomer seals. The most important property of the sealing material is the impact sound insulation, resulting from the high density of the material.