EPDM rubber and neoprene: technical characteristics, temperatures and properties

EPDM rubber and neoprene: technical characteristics, temperatures and properties

The world of synthetic rubber offers us numerous materials, which boast different characteristics. EPDM rubber and neoprene, which is actually the trademark of the DUPONT company of the “POLYCLOROPRENE” polymer, are part of these elements and present themselves as excellent solutions for different uses. (The name “NEOPRENE has become so common that even among technicians, to” save time “we talk about neoprene and not polychloroprene)
The first rubber is made up of ethylene and propylene copolymers, and a diene monomer, the components of the material that also give life to the acronym EPDM. It is a product that has the very interesting characteristic of resisting aging in an excellent way from atmospheric agents. What therefore makes it the material of choice, for example, for the production of car door seals.
EPDM rubber is very different from neoprene. The latter is also an elastomer, which however is produced thanks to the polymerization reaction of 2-chlorine 1.3-butadiene. It has a very particular composition and smell, which has come into common use for years: it is in fact one of the bases for the production of “Bostik” type glues. Let’s go into detail and see what there is to know about these two types of tires.

Two versatile, functional and highly appreciated materials

Those who know EPDM rubber know perfectly well that this material boasts excellent resistance to atmospheric agents and heat, usually ensuring a working temperature from -50 ° C to + 150 ° C. It is also very resistant to steam, action and contact with ozone and atmospheric agents. It also offers interesting electrical insulation properties and a fair resistance to alkaline substances, diluted acids and polar solvents. On the contrary, it is very sensitive to oils and fats and in general to all apolar and waxy substances.

This rubber also ensures excellent mechanical and dielectric properties, good resistance to abrasion, permanent deformation and UV radiation. Neoprene, on the other hand, is, depending on the formulation, flexible and resistant and is excellent for applications with sea water and exposed to atmospheric agents in general. It offers good thermal insulation and excellently resists numerous chemical agents and petroleum derivatives. This elastomer ensures a working temperature from -20 ° C to + 110 ° C. Its most famous application, in the form of foam material, thanks to its resistance to sea water, is for the production of diving suits.


How are these synthetic rubbers used?

Due to their characteristics, EPDM rubber and neoprene are used for the production of numerous products. The first is mainly used as an insulating material. It is excellent, for example, for joining electrical cables and for creating layers of insulation and waterproofing on roofs. It is also used for the production of geo membranes and thermoplastic and mechanical products.

This material can be combined with other substances, in particular with polyurethane binders, and be used in the building sector, especially for the creation of non-slip surfaces.

Neoprene is often used in the chemical and automotive industries. It is also used in the marine industry and for the production of protective coatings and clothing. It is a material with very low breathability, a property that makes it a protagonist in the production of diving suits.

Industrial gaskets in EPDM rubber and neoprene

In addition to the aforementioned uses, it is important to consider that both materials lend themselves well to the realization of a wide range of industrial applications. Therefore, they allow you to produce excellent technical articles, some simpler and others more elaborate. In particular, EPDM rubber and neoprene are used for the production of industrial gaskets. This is because they are very elastic, flexible and resistant to high and low temperatures. They are very versatile and withstand wear and the action of many chemical agents well.

We at Cavallero Gomma are specialized in the production of industrial items and we know very well EPDM rubber and neoprene. Therefore, we put ourselves at your disposal and at the service of your company, proposing the creation of customized, functional, reliable and long-lasting products. You tell us your idea and your goals, and we show you the best solutions. Do not hesitate to contact us for more information.


Types of tires: properties and differences

Many types of tires, for all tastes and needs

There are different types of tires and each of them boasts distinct properties and characteristics. These differences mean that one product is good for one use and another is better suited for other purposes.

The first distinction to be made in this case is the following: to date there are two main types of rubbers available, natural and synthetic ones. The latter are then divided into groups which include materials with similar characteristics, in particular in terms of chemical composition. Let’s go into detail and find out what you should know about the best known and used solutions in the different sectors for the production of various items.

Natural rubbers

As anticipated, between the two main types of tires currently available to industries, we find the natural one. It is a completely vegetable product, which is obtained mainly from the latex of the Hevea brasiliensis tree. This latex is treated and undergoes numerous processes, until it becomes the rubber we know.
This material is very performing from a mechanical point of view. However, it also appears as a very fragile product when in contact with some chemical elements and when exposed to too high temperatures. It is also heavily affected by thermal excursions, which greatly affect the seal of natural rubber. Precisely for these reasons, other types of tires have been developed, able to guarantee what this product cannot offer.

The types of synthetic rubber

When we talk about synthetic rubbers we refer to products that obviously have been created through the combination of different materials and substances. The base from which we start is that of hydrocarbon, which is produced through the processing of an artificial latex. Subsequently, thanks to the addition of other elements, many types of tires can be made. Each of them is created through a different mix of components and materials. Therefore, they are different products with different properties.

These synthetic materials are very resistant. They do not undergo variations in the face of changes in temperature and offer an elasticity that allows them to be used successfully in many sectors of industry. The types of synthetic rubbers are divided into five different product groups, classified by a different letter: M, O, Q, R and U. Group O, for example, contains synthetic latex and oxygen. The tires that fall into the U group are instead made with a mix of synthetic latex, nitrogen, carbon and oxygen.

Types of tires: which is the best?

If you are wondering which type of rubber is better than the others, you will hardly find a single answer. In fact, there are no more performing types of tires: simply, each one is more suitable for a different use. For example, natural rubber is used for the creation of mechanically performing products and for food products and in contact with the skin. Synthetic ones, on the other hand, are exploited for the production of most of the products of daily and industrial use, in the presence of conditions that make natural rubber unusable or inadvisable.

Silicone rubbers, of synthetic origin, are used for the creation of VERY heat-resistant items, such as gaskets for ovens or in machinery with hot working for glass, for example, or for kitchen tools.
Many types of synthetic rubbers are used for the production of industrial items such as gaskets, sleeves, bellows, rings and suction cups. You will find some examples of these uses directly on our website. Do not hesitate to contact us for more information.