RUBBER MATERIALS

The selection of the appropriate rubber formulation and elastomer is essential to guarantee product quality and durability. Thanks to our technical mastery of rubber and elastomer materials since 1905, Jeantet Elastomers offers a wide range of compounds to meet diverse applications.

Advantages of Elastomers

Elastomers are a type of polymer that offer numerous advantages for the manufacture of finished parts. Their flexibility, abrasion resistance, and ability to absorb shocks make them ideal materials for various industrial applications. Furthermore, elastomers can be formulated to meet specific requirements in terms of chemical resistance, temperature, and other mechanical properties.

Classification of Elastomers

Elastomers can be classified into two main categories :

• Natural Elastomers: Natural rubber is harvested from hevea plantations. Once vulcanised, this bio-sourced material offers exceptional properties, particularly in dynamic applications.
• Synthetic Elastomers: Synthetic rubbers are produced by chemical synthesis. They offer a wide variety of properties and can be adapted to specific applications according to constraints.

As a French manufacturer of moulded rubber parts since 1905, Jeantet Elastomers offers bespoke support for all types of seals or parts, whether for prototyping, small or large production runs. Our expertise in various industrial sectors, such as road and rail transport, energy, and defence, allows us to offer a broad spectrum of applications.

Elastomers are characterised by the following key properties :

• Mechanical: They can be formulated to vary their tensile strength or adapt their elongation .
• Elasticity: They can deform under the effect of a force and return to their original shape when the force is removed.
• Resilience: They can absorb the energy of an impact and return it in the form of elastic deformation.
• Abrasion Resistance: They resist wear caused by friction or contact with rough surfaces.
• Chemical Resistance: They can be formulated to resist various chemicals, such as oils, fuels, and solvents.
• Thermal Resistance: They can be formulated to withstand high or low temperatures.

List of Mixed Elastomers

Thanks to its technical mastery of the material, JEANTET elastomers has been offering a very wide range of processed materials since 1905, adapted to the application of finished moulded parts :

Elastomer Production Process :

The elastomer production process generally involves the following steps :

• Component Preparation: The basic components, such as polymers, vulcanising agents, fillers, and additives, are mixed in specific proportions for each formula.
• Vulcanisation: The mixture is heated in the presence of a vulcanising agent, which causes the formation of chemical bonds between the polymer chains, giving the elastomer its elastic structure.
• The vulcanised elastomer is formed according to the desired application, for example by moulding, extrusion, or calendering.
• Post-Treatment: Additional treatments, such as post-vulcanisation, deburring, machining, and assembly, can be performed to meet customer needs.

Factors Influencing Elastomer Properties :

• Molecular Structure: The molecular structure of the elastomer determines its mechanical and chemical properties.
• Composition: The chemical composition of the elastomer, including polymers, vulcanising agents, fillers, and additives, impacts its properties.
• Production Process: Vulcanisation and post-treatment conditions influence the properties of the elastomer.
• Fillers: Fillers added to the elastomer modify its mechanical properties, such as abrasion resistance and tensile strength.
• Additives: Additives added to the elastomer can improve certain properties, such as durability, oxidation resistance, or UV resistance.

Among the synthetic elastomers we work with, here is a presentation of their main characteristics :

NBR (Nitrile Butadiene Rubber):

• Resistance to oils and fuels
• Good abrasion resistance

HNBR (Hydrogenated Nitrile Butadiene Rubber):

• Improved resistance to oils, fuels, and chemicals
• High tensile strength

ACM (Acrylic Rubber):

• Exceptional resistance to hot oils and oxidation
• Good gas resistance
• High temperature resistance

VAMAC (Ethylene-Acrylic Elastomer):

• Excellent resistance to high temperatures, oils, and ozone
• Good abrasion resistance
• Good tensile strength

BR (Butadiene Rubber):

• High resilience and wear resistance
• Good abrasion resistance
• Good low-temperature resistance

IIR (Isobutene-Isoprene Rubber):

• Excellent impermeability to gases and moisture
• Good resistance to ozone and weathering

CR (Polychloroprene or Neoprene):

• Good chemical stability and weather resistance
• Good oil and solvent resistance
• Good tensile strength

CSM (Chlorosulfonated Polyethylene, Hypalon):

• Exceptional durability and resistance to harsh environments
• Chemical and thermal resistance
• UV and ozone resistance

Ebonite:

• Excellent electrical insulation properties
• Chemical and thermal resistance
• Easy to machine and work with (cutting/shaping tools)

ECO (Epichlorohydrin Rubber):

• Exceptional resistance to fuels, oils, and chemicals
• Good low-temperature resistance
• Good tensile strength

EPDM (Ethylene Propylene Diene Monomer):

• Weather and ozone resistance
• Thermal stability
• Chemical resistance

FKM (Fluoroelastomer):

• Exceptional chemical resistance and high-temperature stability
• Good tensile strength
• Good abrasion resistance

FFKM (Perfluoroelastomer):

• Chemical resistance suitable for many applications
• High thermal stability
• Good tensile strength

Elastomer Applications

Elastomers are used in a wide range of applications, including :

• Automotive industry: Tyres, seals, linings, hoses
• Aerospace industry: Seals, hoses
• Chemical industry: Seals, hoses
• Medical industry: Tubes, gloves
• Construction industry: Sealants
• Electrical industry: Insulators

Design and Research & Development Office

Our Mechanical Design Office complements our rubber formulation Chemical Design Office, to offer you this bespoke industrial support for prototypes, moulds and unique parts, in very small series as in large series…

Jeantet Elastomers thus offers custom rubber or elastomer compounds, to specifications.

Jeantet Elastomers places its industrial production tool and its know-how as a French manufacturer since 1905 at the service of elastomer personalisation, to meet your most demanding needs.