RUBBER SPECS

SBR – Styrene Butadiene Rubber

It is the most used, low cost synthetic rubber in the world. The structure of the mixture is irregular. It can be used instead of natural rubber.

Working temperature is between -50 ° C and 100 ° C.

Physical Specifications:

■ Easy to process

■ Can be processed in a short time

■ It is suitable for processing by extrusion method.

■ Low elasticity values

■ High corrosion resistance

■ High aging resistance

Usage Environment:

■ Solvent chemicals

■ Glycol based brake oils

■ Bases

Usage Environment:

■ Vehicle tires

■ Light colored technical materials

■ Extrusion materials

■ Cable and electricity materials

■ Brake and clutch linings

■ Transparent tapes

■ Glues

■ Dynamic parts (V belts)

EPDM – Ethylene Propylene Diene Rubber

It is used in the production of lightweight materials due to its low density. It provides the opportunity to make low-cost mixtures. Its production advantages include good physical properties at high additive rate, low specific gravity and fast mixing, extrusion and vulcanization properties.

It can be used between -40 ° C and 150 ° C.

Usage Environment:

■ Aqueous and concentrated acids

■ Alkalis

■ Silicone liquids

■ Hot water and vapor

■ Phosphate ester based non-flammable hydraulic fluids

Usage Environment:

■ Insulator material in high voltage cables

■ Door and glass insulation

■ Radiator and heater hoses

■ Bellows and gaskets for household appliances and automotive

■ Conveyor belts

■ Insulation for water and chemical tanks

NBR – Nitrile Rubber

It is formed by mixing acrylonitrile and Butadiene monomers with the help of auxiliary additives. The acrylonitrile ratio in the mixture determines the properties of the material. Generally, the acrylonitrile ratio in the mixture varies between 18% and 50%. Acrylonitrile reduces dissolution against hydrocarbons by giving the mixture a polar feature.

As the acrylonitrile ratio in the mixture increases; the material's resistance to oils, fuels, lubricants, greases and gases increases. Its density, hardness, speed of cooking increases. The workability of the mixture becomes easier. Its mechanical properties improve. Elasticity coefficient, permanent permanence value, resistance to aging, fatigue and abrasion increases, life is extended.

As the acrylonitrile ratio in the mixture decreases; The strength of the material at low temperatures decreases. Permanent deformation values ​​deteriorate. Its elasticity decreases. It becomes difficult to manufacture. It is a material that is mostly used for general purposes, preferred in the manufacture of sealing elements, and offers cost-price advantage according to the functions it performs.

It can be used between -40 ° C and 100 ° C.

Usage Environment:

■ Sealing elements

■ Pneumatic hoses

■ Connection elements

■ Conveyor belts

■ Cylinder coating

■ Worker clothes and boots

■ Rubber plates and seals

■ Coupling, membrane, gasoline, oil and hydraulic hoses

VMQ – Silicon Rubber

Unlike polymer rubbers, it consists of Silicium and Oxygen bond systems. Although the forces between the bonds are weak, it has a stable structure. The bond structures formed are expressed with the letter "Q". Naming varies according to the auxiliary materials used during its preparation. Silicone Rubber Mixture is prepared with "MQ" if prepared with Methyl (CH - Saturated Hydrocarbon), "VMQ" if prepared with Methyl Vinyl (Saturated and Unsaturated Hydrocarbon), "PMQ" if prepared with Phenyl Methyl (Organic Hydrocarbon and Saturated Hydrocarbon). It is expressed. It has excellent resistance to ultraviolet rays, ozone and external factors, air and moisture.

It can be used between -50 ° C and 200 ° C.

Usage Environment:

■  High ultraviolet resistance

■  Superior ozone resistance

■  Resistant to external factors

■  Air and moisture resistance

■  Superior isolation specifications

■  Resistant to burning

■  High aging resistance

■  Has a long life

■  Even high strength underground

■  Can be processed transparent

■  Good elasticity values

■  Easy to paint

■  Not poisonous

■  Physically harmless

Usage Environment:

■  Cable, cable end, insulators and keys

■  Spark plug cables and caps

■  Radiator hoses and insulation elements

■  Insulated brake diaphragms

■  Baby pacifiers

■  Gas masks

■  Sealing gaskets for ovens

■  Sealing gaskets for cooler cabinets

■  Sealing gaskets for ozone units and systems

FKM – Fluoro Elastomer Rubber

High temperature, oil and fuel resistance properties are very good. It can work at high temperatures. It has low swelling property. It is resistant to aromatic hydrocarbons, oils, greases, chemicals, acids, petroleum oils and solvents. It has high resistance to oxygen and ozone. It is resistant to burning; does not catch fire. Gas permeability is low. It is a difficult and expensive rubber material to process. It is not suitable for contact with foodstuffs.

It can be used between -30 ° C and 250 ° C.

Usage Environment:

■  Aromatic hydrocarbons

■  Fuels

■  Oils

■  Greases

■  Acids

■  Petrol oils

■  Solvents

Usage Environment:

■  Aviation and space industry

■  Automative industry

■  Cylinder coating

HNBR - Hydrogen Nitrile Rubber

HNBR; While preserving its excellent resistance to motor oils, acidic gas, amine / oil mixtures, oxidized fuels and machine oils; It fills the gap between NBR, EPDM and FKM (Viton) where high temperature conditions require high voltage resistance.

Completely saturated NBR grades can crosslink with peroxides. Peroxide crosslinks formed along this double bond increase the thermal stability and oxidation balance.

Vulcanizates; It provides the highest hot air and hot oil resistance, oxidative and ozone decomposition resistance, resistance to sulfur-containing oils, resistance to oil additives including hydrogen sulfide, sulfur and nitrogen (nitrogen) and industrial chemicals.

The material is characterized by high mechanical strength and improved wear resistance.

It can be used between -30 ° C and 150 ° C.

ACM - Polyacrylic Rubber

ACM is obtained from copolymerization of acrylic esters with monomers. Acrylic esters used; ethyl acrylate and / or butyl or octyl acrylate, ethylmethoxy or ethyloxy acrylate. These copolymers are very resistant to oil, heat, aging and ozone.

Tension properties of acrylic rubbers are not as good as NR and NBR. Especially the new generation ACMs can work around 160-170 ° C for up to 1000 hours. But they show softening at high temperatures.

ACM vulcanizates are more resistant to swelling in animal, vegetable and mineral oils than other rubbers except FKM, which decreases with increasing temperature. It is also not resistant to chemicals. Dry running feature is poor, it is not suitable for use in low temperature and water.

More than 90% of ACM products are used in the automotive industry. They are generally used in crankshafts, automatic and differential transmissions as shaft seal, as well as in o-rings, valves and oil hoses. Although its high price overshadows its other properties, fluoro elastomer (FKM) is preferred in many applications.

It can be used between 160 ° C and 170 ° C.

CR - Chloroprene Rubber

Polar properties are good. It is resistant to many oils and burns. It has low gas permeability. It has strong adhesion to textile and metal materials. Its abrasion resistance is very good. It has superior mechanical properties.

Working temperature is between -20 ° C and 120 ° C.

Physical Specifications:

■  Oil resistant

■  Resistant to air and ozone

■  Resistant to water

■  Chemical resistant

■  Resistance to acids

Usage Environment:

■  Parts with burning risks

■  V belts

■  Rubber bellows

■  Vibration damping elements

■  Diver suits

■  High pressure hydraulic and brake hoses

■  Gaskets