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Stomil-Poznań S.A.
Stomil-Poznań S.A. RUBBER COMPOUNDS
| No. | Application | Base rubber |
Compound Properties | Resistance [MPa] | Hardness [ºSh A] | Lengthening [%] |
|---|---|---|---|---|---|---|
| 1 | Tyres, seals, dampers other technical articles, rubber+metal. | NR | Very good mechanical properties, including grindability, low temperatures resistance, good confectioning adhesion. | 3-20 | 30-90 | 300-600 |
| 2 | Tyres, seals, dampers other technical articles, rubber+metal. | IR | Very good mechanical properties, including grindability, low temperatures resistance, good confectioning adhesion. | 3-20 | 30-90 | 300-600 |
| 3 | Tyres, seals, dampers other technical articles (no oil contact), rubber+metal. |
SBR | Good mechanical properties like grindability, increased cracks resistance, resistant to the majority of chemical compounds, resistant to acids, alcohol, ketones, aldehydes. | 3-20 | 30-90 | 300-600 |
| 4 | Tyres, treads, cable isolation, freezeproof articles, articles resistant to acid and alkali. | BR | Very good grindability, low temperatures resistance, high flexibility, resistant to acids, alcohol, ketones, aldehydes. | 3-20 | 30-90 | 300-600 |
| 5 | Oil proof seals and dampers, hoses, printing rollers. |
NBR | High oil resistance, good mechanical properties. | 6-15 | 35-90 | 100-500 |
| 6 | Semi voltage isolation, door and window seals, automotive industry, radiator hoses, hot water hoses. | EPDM | Very good resistance to weather conditions (ozone, animal & plant grease, high temperature, heat ageing). | 6-12 | 50-90 | 150-400 |
| 7 | Slow-burning articles, anticorrosive lining, isolation lining. | CR | Very good mechanical properties, very good resistance to weather conditions, resistant to acids, slow-burning. | 10-18 | 48-85 | 180-400 |
| 8 | Membranes, water steam hoses, tubes, shock-absorbers. | IIR | Good physical properties including dielectric properties, low gas permeability, constant work in high temperatures, resistant to ozone, animal and plant oils, oxidizing chemicals, high dulling properties. | 11-13 | 55-65 | 500-620 |
| 9 | Seals, gaskets, hoops for difficult environments (aviation, automotive, chemical industry). | FPM | Very high chemical resistance to: acids, hydroxides, very good temperature resistance, low gas permeability, good mechanical properties. | 16-19 | 80-90 | 70-180 |
Stomil-Poznań S.A. produce rubber compounds:
| Rodzaj kauczuku | Nazwa | Właściwości mieszanki gumowej | Przeciwwskazanie do stosowania | Zastosowanie |
|---|---|---|---|---|
| Natural isoprene |
NR | Very good mechanical properties, including grindability, low temperatures resistance, good confectioning adhesion. | Vulnerable to ozone, organic solvents, acids and hydroxides of medium and high concentration. | Tires, technical articles (seals, shock absorbers, rubber-metal). |
| Synthetic isoprene | IR |
„ |
„ |
„ |
| Butadiene-styrene | SBR | Good mechanical properties like grindability, increased cracks resistance, resistant to the majority of chemical compounds, resistant to acids, alcohol, ketones, aldehydes. | Vulnerable to ozone, strong acids, fats, oils, greases, most hydrocarbons. | Tires, technical articles (seals, shock absorbers, rubber-metal, rubber hoses) without coming into contact with oil. |
| Butadiene | BR | Very good grindability, low temperatures resistance, high flexibility, resistant to acids, alcohol, ketones, aldehydes. | Vulnerable to ozone, strong acids, fats, oils, greases, most hydrocarbons. | Tires, treads, cable insulation, frost articles, articles resistant to acids and alkalis. |
| Nitrile | NBR |
High oil resistance, good mechanical properties. |
Vulnerable to ozone, ketones, esters, aldehydes, chlorinated hydrocarbons and nitrated. |
Oil-resistant products (gaskets, shock absorbers), printing rollers, hoses. |
|
Ethylene-propylene |
EPDM |
Very good resistance to weather conditions (ozone, animal & plant grease, high temperature, heat ageing). |
Petroleum hydrocarbons, aromatic hydrocarbons. |
Medium-voltage insulation, sealing windows and doors, the car industry. |
|
Chloroprene |
CR |
Very good mechanical properties, very good resistance to weather conditions, resistant to acids, slow-burning. |
Vulnerable to strong oxidizing acids, esters, ketones, chlorinated hydrocarbons, aromatic and nitrated. |
Products not readily flammable, corrosion linings, insulation lining. |
|
Butyl |
IIR |
Good physical properties including dielectric properties, low gas permeability, constant work in high temperatures, resistant to ozone, animal and plant oils, oxidizing chemicals, high dulling properties. |
Not resistant aliphatic and aromatic hydrocarbons. |
Membranes, tubes, hoses for water vapor, ram. |
|
Fluoric |
FPM |
Very high chemical resistance to: acids, hydroxides, very good temperature resistance, low gas permeability, good mechanical properties. |
Little flexibility, a large permanent deformation. |
Gaskets, washers, rings operating in difficult environments (aviation, automotive, chemical industry). |
Physicochemical properties
General purpose rubber compounds
|
Rubber base |
Hardness |
Resistance to tensile breaking |
Lengthening at breaking |
|---|---|---|---|
|
|
ºShA |
MPa |
% |
|
NR, IR, SBR, BR |
30-90 |
3-20 |
300-600 |
Oil-resistant rubber compounds
|
Rubber base |
Hardness |
Resistance to tensile breaking |
Lengthening at breaking |
|---|---|---|---|
|
|
ºShA |
MPa |
% |
|
NBR |
35-90 |
6-15 |
100-500 |
Rubber compounds of weather resistant, thermal aging, high temperature, acid and inorganic hydroxides
|
Rubber base |
Hardness |
Resistance to tensile breaking |
Lengthening at breaking |
|---|---|---|---|
|
|
ºShA |
MPa |
% |
|
EPDM |
50-90 |
6-12 |
150-400 |
Rubber compounds with high mechanical properties, high resistance to weathering, oils and greases
|
Rubber base |
Hardness |
Resistance to tensile breaking |
Lengthening at breaking |
|---|---|---|---|
|
|
ºShA |
MPa |
% |
|
CR |
45-85 |
10-18 |
180-400 |
Rubber compounds with very low gas permeability, suitable for continuous operation at elevated temperatures
| Baza kauczuku | Hardness | Resistance to tensile breaking | Lengthening at breaking |
|---|---|---|---|
|
|
ºShA |
MPa |
% |
|
IIR |
55-65 |
11-13 |
500-620 |
|
FPM |
80-90 |
16-19 |
70-180 |
Attention: These parameters are indicative of compound.
With inquiry please include the following data:
- Rubber base
- Rubber compound hardness
- Resistance to tensile breaking
- Lengthening at breaking
- Norm
- Technology processing: injection, pressing, calendering, vulcanisation in hand, molten salts
- Conditions of use
