Cellular rubber is a fascinating material that is characterized by its unique combination of elasticity, durability and versatility. Whether as a seal, insulation or insulation - cellular rubber finds its place in countless applications and ensures optimal results. But what exactly makes cellular rubber so special? And where is it used?
In this comprehensive guide, you will learn everything you need to know about cellular rubber. Immerse yourself in the world of this extraordinary material and discover the diverse possibilities it offers you!
What is cellular rubber?
Cellular rubber, also known as cellular rubber , is a closed-cell foam based on rubber. It is created by vulcanizing rubber with the addition of blowing agents, which creates a large number of small, gas-filled cells in the material. This cell structure gives cellular rubber its characteristic properties:
Elasticity and flexibility: Cellular rubber is elastic and flexible and adapts perfectly to different shapes and surfaces.
Lightness: Due to the high proportion of air, cellular rubber is significantly lighter than solid rubber.
Thermal insulation: The closed cell structure of the cellular rubber ensures excellent thermal insulation.
Sound insulation: Cellular rubber absorbs sound waves and effectively reduces the sound level.
Water and air tightness: The closed cells prevent the penetration of water and air.
Chemical resistance: Cellular rubber is resistant to many chemicals, oils and solvents.
Cellular rubber is available in different densities, degrees of hardness and colors. Depending on the application, special properties such as flame retardancy, food suitability or medical approval may be required.
Thermal Properties of Cellular Rubber
Cellular rubber is characterized by excellent thermal properties. It is temperature-resistant, heat-insulating and, in many versions, flame-retardant.
Important thermal properties:
Temperature resistance: Cellular rubber can generally be used in a wide temperature range, which varies depending on the rubber type (e.g. -40°C to +110°C for EPDM).
Thermal conductivity: The closed cell structure of the cellular rubber ensures low thermal conductivity and excellent thermal insulation.
Fire behaviour: Many types of cellular rubber are flame-retardant and self-extinguishing. They meet the requirements of various fire protection standards (e.g. DIN 4102, UL 94).
Mechanical Properties of Cellular Rubber
Cellular rubber has good mechanical properties. It is flexible, elastic, pressure-resistant and tear-resistant.
Important mechanical properties:
Compressive strength: Cellular rubber can withstand high compressive loads. The compressive strength depends on the density and hardness of the material.
Tensile strength: Cellular rubber has good tensile strength and can also withstand tensile forces.
Elongation at break: Cellular rubber is stretchable and tear-resistant.
Elasticity: Cellular rubber has a high resilience and returns to its original shape after deformation.
Acoustic Properties of Cellular Rubber
Cellular rubber is an effective sound insulator. The closed cell structure of the material absorbs sound waves and reduces the sound level.
Important acoustic properties:
Sound absorption: Cellular rubber absorbs sound waves in a wide frequency range.
Vibration dampening: Cellular rubber dampens vibrations and reduces the transmission of vibrations.
Frequently used industries
Cellular rubber is a versatile material that is used in a wide variety of industries.
Examples of industries in which cellular rubber is used:
Construction: sealing of windows and doors, sound insulation, thermal insulation, facade insulation
Automotive: Seals for engines, transmissions, door seals, sound insulation in vehicle interiors
Electrical engineering: insulation of electronic components, protection against electromagnetic radiation
Mechanical engineering: seals, padding, vibration damping
HVAC: Insulation of ventilation ducts, pipes and air conditioning systems
Rail vehicle construction: sound and vibration insulation
Medical technology: wound dressings, bandages, prostheses
Packaging industry: protection of sensitive goods
Sporting goods industry: handles and padding for sports equipment
Are you looking for high-quality cellular rubber for your company?
Rexio offers you a wide range of cellular rubber in different densities, degrees of hardness and colors. Let our experts advise you and find the optimal solution for your requirements!
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