BASIC ELASTOMER CHART

1. Acryl Nitrile

NBR has good mechanical properties in comparison with other elastomers and a particularly high wear resistance.

Compatible With : Aliphatic Hydrocarbons (Propane,Butane,Petroleum Oil, Mineral Oil and Grease,Diesel, Fuel, Fuel Oils), Vegetable and Mineral Oils & Grease, HFA, HFB and HFC - Fluids, Many Diluted Acids, Alkalies, Salt Solution at low temperatures, Water (Special Compunds upto + 100 c)
NOT COMPATIBLE WITH : Fuels with high Aromatic content (for Super Fuels a Special Compound must be used), Aromatic Hydrocarbons (Benzol), Chlorinate (Trichloroethylene), Polar Solvents (Ketone, Acetone, Acetic Acid, Ethyelene, Ester), Strong Acids, Brake Fluids on Glycol base, Ozone, Ageing & Weather resistant.

2. Ethylene Propylene Dion Rubber (EPDM)

EPDm is a rubber manufactured as a co-polymer of Ethylene and Propylene.

COMPATIBLE WITH : hot water and steam upto + 150 c , Special Compounds upto + 200 c,Brake Fluids on Glycol base upto +150 c, Many Organic and Unorganic Acids, Cleaning Agents, Natron and kali-Alkalies, Hydraulic Fluids based on Phosphate-Ester (HFD-R), Silicone Oil and Grease, Many Polar Solvent (Alcohol,ketone,Ester) Skydrol 500 and 7000, Ozone,Ageing and Weather Resistant.

3. Butyl Rubber (IIR)

Butyl has a low Gas Permeability rate and good Electrical Properties

COMPATIBLE WITH : Hot Water and Steam upto +130 c, Brake Fluids on Glycol base, Many acids, Salt solutions, Polar solvents e.g. Alcohol,Ketone and Ester, Hydraulic Fluids based on Poly-Glycol (HFC-Fluids) and Phosphate -Ester (HFD-R-fluids), Silicone Oil and Grease, Skydrol 500 and 7000, Ozone, Ageing and Weather Resistant.
NOT COMPATIBLE WITH : Mineral Oil and Grease, Fuels, Chlorinated Hydrocarbons.

4. CHLOROPRENE (NEOPRENE) RUBBER (CR)

Chloroprene was the first Synthetic Rubber and shows in general good Ozone , Ageing and Chemical Resistance, acceptable Oil Resistance and good Mechanical Properties over a wide temperature range.

COMPATIBLE WITH : Mineral Oil Paraffin base with low DVI e.g ASTM Oil no.1, Silicon Oil and Grease, Water and Water solvents at low temperatures, Refrigerants (Ammonia, Carbondioxide,Freon) improved Ozone, Ageing And Weather Resistance in comparision with NBR
NOT COMPATIBLE WITH : Aromatic Hydrocarbons (Benzene), Chlorinated Hydrocarbons (Trichloroethylene), Polar solvents (ketone, Ester, Aceton).

5. FLUOROCARBON RUBBER (FPM)

FPM has an excellent Resistance to high temperatures, Ozone, Oxygen, Mineral Oil, Synthetic Hydraulic fluids, Fuels, Aromatics & many Organic solvents and Chemicals.

COMPATIBLE WITH : Mineral Oil and Grease, Low Swelling in ASTM Oil No.1-3, NON-flammable Hydraulic Fuels in the ground HFD ,Silicone Oil and Grease Mineral Oil, Vegetable Oil and Grease , Alphatic Hydrocarbons (Butane, Propane Fuel, Natural gas) , Aromatic Hydrocarbons (Benzene, Toluene) Chlorinated Hydrocarbons (Trichloroethylene and Carbon Tetrachloride), fuels 9)fuels with metaganol content, High vacuum , very good Ozone, Ageing and weather resistance.
NOT COMPATIBLE WITH : Polar Solvents (Acetone, Methyl Ether, Ketone, ethyl Acetate, Diethyl Ether, Dioxane ) , skydrol 500 and 7000 , Brake Fluids on Glycol base , Ammonia Gas, Amine, Alkalies, Superheated Steam , Low Molecular Aromatic Hydrocarbons (eg.Benzene,Toluene)

6. FLUORO SILICONE RUBBER (MFQ)

MFQ contains Trifluoropropyl groups next to the Methyl groups. The Mechanical and Physical Properties are very similar to those of MVQ.

COMPATIBLE WITH : As per MVQ plus also compatible with , Aromatic Mineral Oil (eg. ASTM Oil No. 3) Fuels 4) Low Molecular Aromatic Hydrocarbons (e.g. Benzene, Toluene).

7. POLYURETHENE RUBBER (AU.EU)

Polyurethene Elastomers demonstrate, in comparison with all other Elastomers, an excellent Wear Resistance, high Tensile Strength and High Elasticity.

COMPATIBLE WITH : Pure Aliphatic Hydrocarbons ( Propane, Butane, Fuel) but impurities (such as Moisture, Alcohol, Acid or Alkaline connection) can cause chemical attack on the polyurethene , Mineral Oil and Grease ( particular Additives can attack the Compund chemically ), Silicone Oil and Grease , Water upto + 50 0c , Ozone and Ageing resistant.
NOT COMPATIBLE WITH : ketone, Ester, Ether , Alcohol, Glycol , Hot Water, Steam , Alkalies, Amino Acid.

8. SILICON RUBBER (Q.MQ.MVQ)

The term Silicone rubber covers a large group of materials in which Methyl Vinyl Silicone (MVQ) is the main. Silicone Elastomers as a group have relatively poor tensile strength and poor wear & tear Resistance. However, they have many Special Properties. Silicone in general has good Heat Resistance upto +230 0 c and good Cold Flexibility upto – 60 0 c , good Weather Resistance and good insulating and physiologically neutral properties.

COMPATIBLE WITH : SNF Engine Transmission Oil (e.g. ASTM Oil No. 1) Animal and Vegetable Oil and Grease Brake Fluid (Non-petroleum base) , Fire Resistant Hydraulic Fluid, HFD-R and HFD-S (e.g. Clophene) Chlorodiphenyl (incl. Flame-Resistant Insulators, Solutions Coolants for Transformers) , Water upto + 100 0 c , Diluted Salt Solutions , Ozone, Ageing and Weather resistant.
NOT COMPATIBLE : Superheated Water/Steam over + 120 0 c , Acids and Alkalies , Silicone oil & Grease Llow Molecular Chlorinated hydrocarbons (e.g. Trichloroethylene ) , Aromatic Mineral Oil, Fuels , Aromatic Hydrocarbons (e.g. Toluene).

9. NATURAL RUBBER

Natural Rubber is high Molecular Weight isoprene The vulcanisate ischaracterised by high mechanical strength and elasticity as well as by good low temperature behaviour. it is therefore preferably used for production of torsional vibration dampers , engine mountings machine supports, rubber- metal suspension elements, diaphragms moulded parts etc.

GOOD RESISTANCE TO SWELLING IN :
Acids and bases at low concentration as well as alcohol and water if the
temperature is not to high. Brake fluids based on glycol, e.g. ATE-SL at temperature up to 70 c

10. AFLAS RUBBER

11. PTFE

12. EPICHLOROHYDRINE RUBBER (ECU)

13. THERMO PLASTIC RUBBER (TPR)