Rubber refers to both the tree that grows in tropical regions and produces a milky white fluid, as well as the elastic congealed compound derived from this fluid.

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While industrialists and producers process raw materials and semi-manufactures to make them ready for use, they...

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Tree Products Sector, Packaging Industry, Lighting Industry, Elevator - Crane -Forklift Sector...

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Ege Soylu

is a company that serves as a solution partner for establishments operating in all kinds of  production sectors, and makes whole and retail sales of rubber-based products.




Ege Fleks is a company that sells Epdm-based waterproofing sheets, Epdm-based Dilatation strips, Flex strip group, and professional construction chemicals used for insulation area.


EPD rubber is one of the fastest developing synthetic rubber types in the recent years. It is composed of various groups called Ethylene, Propylene and Diene. It was first produce in 1963 and saw a huge increase in its production after 1985. Due to its wide area of application, it has become a general-purpose rubber type.


Thanks to the elastomer and polymers in its composition, it has superior resistance to ozone gas and solar UV lights compared to its counterparts. It does not lose any of its properties in sudden temperature shifts ranging from -40°C up to +120°C. It has over 300% extensibility. It is resistant to plant roots, salinity in the soil and water, and numerous chemicals. Thanks to its high elongation property, it can be applied in structures with dilatation without requiring additional measures. Conducted aging tests has shown that it can remain in its application site without showing any sign of deterioration for a minimum of 30 years.


The success of EPDM comes from its outstanding physical properties such as longevity, climatic durability, elasticity etc. One of the vital properties of the product is that it is not hazardous for the environment and human health. EPDM has a wide area of use including buildings with terrace and dome roofs, under roof tiles, metal roofs, green roofs, building foundation and side wall insulations, curtain walls, cut-and-cover tunnel constructions, pond bases, landscaping and garden ponds, buildings with dilatation, and as single-layer waterproofing sheet in treatment facilities.


And with its 12 years of experience, our company provides rubber products to construction, white goods, and automotive sectors.

This website was created as a part of "the Project for the Use of Advanced Technology in EPDM Membrane Production and Initiation of the Production and Exportation of Innovative Products" endorsed by T.C. Zafer Development Agency. Ege Kauçuk Sanayi ve Ticaret Ltd. Şti. is responsible for the website content and it does not represent the views of T.C. Zafer Development Agency.











Combining its 25 years of business experience with 15 years of operation as a production company with its machine park and laboratory established by keeping close track of technology in its rubber factory with an indoor area of 4000 m2 located in Manisa Organized Industrial Zone, Ege Kauçuk has become a leading and innovative establishment of the rubber sector.

    Our company Ege Kauçuk, which serves under the principles of right product, right price and on-time delivery, has deservedly gained the trust of the market by never making concessions of quality.    

    Combining years of knowledge and experience with its mastery of rubber materials, Ege Kauçuk has become a customer satisfaction-oriented and highly sought-after supplier that produce solutions for all branches of the manufacturing industry.    

    It has not limited its technical know-how and technological superiority to the existing standard products, and made its primary mission to provide its customers with continuous pre-sales and post-sales support by offering solutions in accordance with the needs of the industry.    

    Our vision is to put our non-stop effort as a team for the Turkish Rubber Industry to take the place it deserves in the global market.



What Is Rubber?

   Rubber refers to both the tree that grows in tropical regions and produces a milky white fluid, as well as the elastic congealed compound derived from this fluid. There are other similar substances obtained from various other plants that are called rubber as well. In the indigenous Amazon language, rubber means 'the crying tree'.


What Is Natural Rubber?

 Natural Rubber is a milk-like hydro-carbide drawn off by making incisions in the bark. The average molecular mass of this substance, which is a polyisoprene the formula of (C5 H8), is between 200,000 and 300,000. Depending on the production method, it has either a colorless or a yellowish translucent appearance. Affected by oxygen, the isoprene chain is broken down into smaller parts, which eliminates its elasticity and resistance.

   Since raw rubber, when left alone, becomes unshapely, it is reinforced by being processed with sulfur. The sulfurization process discovered by Charles Goodyear in 1840 is the bonding of hydrocarbon chains with sulfur atoms, which prevents the chains from slipping over each other and thus increasing their elasticity. The flexibility of rubber is gradually reduced as bridge connections will increase if the sulfurization rate is kept high. When the sulfur rate reaches 32 percent, elasticity disappears and the rubber turns into a brittle solid substance called ebonite.


What Is Synthetic Rubber?

   Synthetic rubber is macromolecular substance that becomes elastic when processed with sulfur. Like natural rubber, these polymers are also comprised of elastic molecule chains with special shape and symmetry. Most important ones among them are butadiene and styrene copolymers, indicated by 'SBR' symbol. Polybutadiene, polyisoprene and butyl are other rubbers also widely used in the car tire industry.


Rubber Production

   Natural rubber production, which had been in the forefront until 1960, was replaced by synthetic rubber after this date. Excluding the Soviet Union, world synthetic rubber production is around 7 million tons. One-third of it is produced by the United States. The USA is followed by Japan, with 1 million tons. Its production in the industrialized European countries is close to Japan's production. Natural rubber, which can be produced only in tropical countries, is around 3.5 million tons per year, and a large amount of this is produced by Southeast Asian countries (1.5 million tons in Malaysia).




Rubber Types and Properties

   While industrialists and producers process raw materials and semi-manufactures to make them ready for use, they utilize the raw material and chemical compositions made of rubber types that fit the material in accordance with the customer demands.

  The following list will offer you brief information on rubber types and properties;


Silicone Rubber

Symbol : (MQ, VMQ, PVMQ)

   It is used in temperatures between -60°C and 200°C. It has an intermittent capacity to endure temperatures up to 250°C. It is primarily used in seals. It has high elasticity, as well as high air and ozone resistance. It is not recommended for use in fuels, oils with EP additives, and applications that require high mechanical properties.


Styrene Butadiene Rubber

Symbol : (SBR)

   It is resistant to glycol-based brake fluids, acids and bases, and alcohol. It is used in temperatures between -50°C and 100°C. It is not resistant to fuels and petroleum-based oils and recommended against using with these.


Natural Rubber

Symbol : (NR)

   It is used in temperatures between -60°C and 90°C. It has similar properties with Styrene Butadiene Rubber (SBR) in terms of ambient resistance. It can be used in areas and places that require high elasticity and mechanical properties.


Nitrile Rubber

Symbol : (NBR)

     It is a general-purpose oil and grease resistant material recommended for most sealing applications. Various mixtures are offered to be processed with fuels and industrial fluids. It has poor resistance to glycol-based brake oils and EP additives and is recommended against using with these.

   Nitrile rubber is typically used in ambient temperatures between -40°C and 105°C. It has an intermittent capacity to endure temperatures up to 120°C. It is preferred for its price/functionality balance.

   Cork nitrile mixtures are used in gasket production. It has similar properties with standard nitrile in terms of resistance. The inclusion of cork also adds the property of compressibility (volumetric shrinkage). Cork nitrile finds use in only static applications.


Hydrogen Nitrile Rubber

Symbol : (HNBR)

   Hydrogen nitrile rubber is produced from NBR polymers. The materials and products produced in this way have high mechanical strength, as well as greater wear resistance and endurance. Its ambient resistance is between -40°C and 105°C, like Nitrile Rubber (NBR). It has a usage limit of 150°C.


Ethylene-Propylene Rubber

Symbol : (EPM- EPDM)

The ethylene−propylene copolymerization was first started to be produced in 1963 (EPM). Since there is no double bond in the reaction, it has a completely saturated structure. This enables the rubber to be resistant to ozone and oxygen.

EPDM ethylene is obtained by the reaction of propylene with the inclusion of a third diene.

Large amounts of fillers and oil absorption capacity allows formation of low-cost mixtures. It is resistant to acids and bases.


Polyacrylic Rubber

Symbol : (ACM)

   It is more tolerant to high temperatures and oils with EP additives, compared to nitrile rubber. It is generally used in temperatures up to 150°C. It has excellent ozone resistance. It has poor fuel resistance and low-temperature (-30 °C min.) endurance.  It is particularly used in gearbox seals.


Fluorocarbon Rubber

Symbol :  (FKM)

   It can be used in temperatures between -40°C and 150°C. It has excellent tolerance and resistance to phosphate ester fluids, glycol-based break oils, water vapor, ozone and weather conditions. It is not suitable for fuels and petroleum-based oils.



Symbol : (PTFE)

   It is a plastic material that is resistant to many industrial chemicals. It is tolerant to temperatures between -260°C and 260°C. It is the solid matter with the lowest friction coefficient. It is not adhesive and can be used as bearing material without needing lubrication. Some varieties have excellent electrical non-conductivity. Pure, fiberglass, carbonaceous, graphite, bronze, and molybdenum sulfide PTFEs are used, depending on the area of application.



Symbol : (PA)

   It is also commonly known as "nylon". It can be used in temperatures between -20°C and 90°C. Certain types can have a usage limit of up to 140°C. It is a raw material type with excellent friction and wear properties as well as resistance to oils, fuels and esters.


Thermoplastic Polyurethane

Symbol : (TPU)

   Thermoplastic Polyurethane has excellent mechanical properties that allow it to be processed effectively by injection molding. The main advantages of TPU are high its resistance to abrasion, wide temperature range flexibility, resistance to oils, greases and numerous solvents.


Physical Properties of Rubber Types

   Certain tests are carried out to gain knowledge on rubber-based materials and their chemical and physical properties, which are used extensively in many parts of our daily lives. Appropriate rubber types are used based on the results of these tests.

In our previous article titled ‘What is Rubber’, we gave some information on what natural rubber and rubber is, as well as rubber production.



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