List of essential mixtures Mixtures based on fluorine caoutchouc Mixtures based on silicone caoutchouc Mixtures based on EPDM caoutchouc Mixtures based on nitrile caoutchouc Mixtures based on chloroprene - nitrile caoutchouc Mixtures based on chloroprene caoutchouc Mixtures based on natural caoutchouc Mixtures based on butadiene - styrene - isoprene caoutchouc Mixtures based on butadiene - styrene - nitrile caoutchouc   Item Mixture symbol Caoutchouc base Hardness (Sh) Endurance (MPa) Temperature range 1 HKF-01 FPM (fluorine) 80 ±5 >=12 -20÷200°C 2 HKF-02 FPM (fluorine) 70 ±5 >=11 -20÷200°C Mixtures based on fluorine caoutchouc are resistant to fuels, synthetic oils, mineral oils and greases, aliphatic and aromatic carbohydrates, hydraulic liquids. The next features are low gases permeability, incombustibility, good mechanical proprieties, very good resistance to high temperatures.   3 HKS-01 SI (silicone) 80 ±5 >=7 -45÷200°C 4 HKS-02 SI (silicone) 70 ±5 >=7 -45÷200°C 5 HKS-03 SI (silicone) 60 ±5 >=7 -45÷200°C 6 HKS-04 SI (silicone) 50 ±5 >=7,5 -45÷200°C Mixtures based on silicone caoutchouc are resistant to mineral oils and greases, resistant to light, ozone and oxygen, highly resistant to organic compounds and salts activity. They are incombustible, have good dielectric proprieties, high selective permeability of gases and vapours, flexibility and low permanent distortions.   7 HKE-01 EPDM 80 ±5 >=10 -50÷125°C 8 HKE-02 EPDM 70 ±5 >=7 -60÷125°C 9 HKE-03 EPDM 60 ±5 >=12 -50÷140°C 10 HKE-04 EPDM 50 ±5 >=8 -50÷125°C 11 HKE-05 EPDM 35 ±5 >=6 -60÷125°C Mixtures based on ethylene-propylene-diene (EPDM) caoutchouc are resistant to hot water and steam, ozone activity and atmospheric conditions. They have good mechanical proprieties, low permanent distortions, they are resistant to acids and alkalis, very resistant to low temperatures.   12 HKN-01 NBR 85 ±5 >=11 -30÷100°C 13 HKN-02 NBR 80 ±5 >=12 -40÷120°C 14 HKN-03 NBR 75 ±5 >=11 -50÷100°C 15 HKN-04 NBR 73 ±5 >=13 -30÷100°C 16 HKN-05 NBR 65 ±5 >=11 -30÷120°C 17 HKN-06 NBR 63 ±5 >=11 -30÷100°C 18 HKN-07 NBR 57 ±5 >=6 -60÷100°C 19 HKN-08 NBR 50 ±5 >=6,5 -45÷100°C Mixtures based on nitrile caoutchouc are resistant to mineral oils and greases, oils of plant and animal origin, water activity, aliphatic and aromatic carbohydrates, fats, acids, atmospheric conditions, they are endurable to rubbing.   20 HKCN-01 CR/NBR 70 ±5 >=9 -50÷100°C 21 HKCN-02 CR/NBR 65 ±5 >=9 -55÷100°C 22 HKCN-03 CR/NBR 60 ±5 >=9 -35÷100°C 23 HKCN-04 CR/NBR 50 ±5 >=9 -40÷100°C 24 HKCN-05 CR/NBR 40 ±5 >=9 -40÷100°C Mixtures based on chloroprene/nitrile caoutchouc are resistant to activity of atmospheric conditions, aliphatic carbohydrates, diluted acids and alkalis, they have good mechanical properties.   25 HKC-01 CR 80 ±5 >=14 -20÷120°C Mixtures based on chloroprene caoutchouc are resistant to activity of oxygen, ozone, atmospheric conditions, flame, aliphatic carbohydrates and lubricating oils, diluted and concentrated alkalis, diluted acids.   26 HKNR-01 NR 60 ±5 >=10 -55÷100°C 27 HKNR-02 NR 48 ±5 >=12 -55÷100°C 28 HKNR-03 NR 40 ±5 >=16 -55÷100°C Mixtures based on natural caoutchouc are resistant to water, alcohol, plant and animal greases. They are resistant to rubbing and distortions and have good mechanical properties. They can be used for production of details intended for contact with food.   29 HKSB-01 SBR/IR 70 ±5 >=8 -60÷100°C Mixtures based on butylene-styrene/isoprene caoutchouc have good mechanical and dynamic properties, they are resistant to distortion.   30 HKSB-02 SBR/NBR 60 ±5 >=12 -40÷120°C Mixtures based on butylene-styrene/natural caoutchouc have good mechanical properties, they can be used to contact with drinking water.   We produce special products using the following mixtures: IRP-1078, IRP-1225, IRP-1266, IRP-1287, HN-1-7, NO-68-1, TA-17, S-562, W-14, 1847, 3109, 3311, 3508, 3824, 3825, 3826, 3834, 783-2, 98-1, 9831. All mixtures have full range of tests and attests. For special requirements there is a possibility of choosing other mixtures than mixtures listed above.