| Properties | Natural Rubber | Butadiene (SBR) | Butyl (IIR) | Ethylene Propylene (EPDM) | Nitrile (NBR) | Silicone (Q) | Neoprene (CR) | Fluorel (FKM) | Silastic LS (FVMQ) | Buna-S | Hypalon (CSM) | Thiokol (T) | Urethane (EU) | Acrylic (ACM) | |
| Tensile Strength (PSI) bar | Pure Gum | Over 3000 | Below 1000 | Over 1500 | Over 1500 | Below 1000 | Below 1500 | Over 1500 | Below 1000 | Below 1500 | 400 | 4000 | 300 | - | 100 |
| Black Loaded | Over 3000 | Over 2000 | Over 2000 | Over 2000 | Over 2000 | Below 1500 | Over 2000 | Over 2000 | Below 1500 | - | - | - | - | - | |
| Reinforced | 4500 | - | 3000 | 2500 | 4000 | 1100 | 3500 | 2300 | - | 3000 | 4400 | 1500 | 6500 | 1800 | |
| Hardness Range (Shore A) | 30 - 90 | 40 - 90 | 40 - 75 | 40 - 90 | 40 - 90 | 20 - 85 | 30 - 95 | 60 - 95 | 40 - 80 | - | - | - | - | - | |
| Specific Gravity (Base Material) | 0,93 | 0,94 | 0,92 | 0,85 | 0,98 | 1,1 | 1,23 | 1,8 | 1,4 | - | - | - | - | - | |
| Adhesion to Metal | Excellent | Excellent | Good | Good | Excellent | Good | Excellent | Excellent | Good | - | - | - | - | - | |
| Aging | Sunlight | Poor | - | Excellent | - | Poor | Good | Excellent | Excellent | - | Poor | Excellent | Good | Excellent | Excellent |
| Oxidation | Good | - | Good | Good | Fair | Very Good | Good | Excellent | - | Fair | Very Good | Good | Excellent | Excellent | |
| Heat (Maximum Temperature) | 2000F | - | 200 0F | 350 0F | 2500F | 450 0F | 200 0F | 400 0F | - | 2000F | 300 0F | 140 0F | 200 0F | 350 0F | |
| Static (Shelf) | Good | - | Good | Good | Good | Good | Very Good | - | - | Good | Good | Fair | - | Good | |
| Low Temperature Flexibility (Maximum) | -650F | - | -400F | -50 0F | -400F | -100 0F | -400F | -30 0F | - | -500F | -20 0F | -40 0F | -40 0F | -10 0F | |
| ReBound | Cold | Excellent | Good | Poor | Good | Good | Excellent | Good | Very Low | Excellent | - | - | - | - | - |
| Hot | Excellent | Good | Good | Good | Good | Excellent | Good | Low | Excellent | - | - | - | - | - | |
| Dielectric Strength | Excellent | Excellent | Excellent | Excellent | Poor | Good | Good | Good | Good | - | - | - | - | - | |
| Electrical Insulation | Good | Good | Good | Excellent | Poor | Excellent | Fair | Fair | Excellent | - | - | - | - | - | |
| Permeability to Gases | Fair | Fair | Very Good | Good | Fair | Fair | Very Good | Good | Excellent | Fair | Very Good | Good | Good | Good | |
| Tear Resistance | Excellent | Fair | Good | Poor | Fair | Poor-Fair | Good | Good | Fair | Poor-Fair | Excellent | Fair | Excellent | Fair | |
| Compression Set Resistance | Good | Good | Fair | Fair | Very Good | Good | Excellent | Poor | Good | Good | Poor | Poor | Good | Good | |
| Abrasion Resistance | Excellent | Good | Fair | Good | Good | Poor | Excellent | Very Good | Poor | Good | Excellent | Poor | Excellent | Good | |
| Flex Cracking Resistance | Excellent | - | Excellent | - | Good | Fair | Excellent | - | - | Good | Excellent | Fair | Excellent | Good | |
| Water Resistance | Good | - | Very Good | Very Good | Excellent | Fair | Fair | Excellent | - | Very Good | Fair | Fair | Fair | Fair | |
| Acid Resistance | Diluted (Under 10%) | Good | - | Good | Very Good | Good | Fair | Fair | Excellent | - | Good | Good | Poor | Fair | Poor |
| Concentrated | Fair | Fair | Fair | Good | Poor | Poor | Fair | Very Good | Good | Fair | Good | Very Poor | Poor | Poor | |
| Solvent Resistance | Aliphatic Hydrocarbon | Very Poor | Poor | Poor | Poor | Good | Poor | Fair | Excellent | Excellent | Very Poor | Fair | Excellent | Very Good | Good |
| Aromatic Hydrocarbon | Very Poor | Poor | Very Poor | Fair | Fair | Very Poor | Poor | Very Good | Good | Very Poor | Poor | Good | Fair | Poor | |
| Oxygenated Solvent | Good | - | Good | - | Poor | Poor | Fair | Good | - | Good | Poor | Fair | Poor | Poor | |
| Halogenated Solvent | Very Poor | - | Poor | Poor | Very Poor | Very Poor | Very Poor | - | - | Very Poor | Very Poor | Poor | - | Poor | |
| Swell in Lubricating Oil Resistance | Poor | Poor | Poor | Poor | Very Good | Fair | Good | Excellent | Good | - | - | - | - | - | |
| Gasoline Resistance: | Aromatic | Very Poor | - | Very Poor | Fair | Good | Poor | Poor | Good | - | Very Poor | Poor | Excellent | Fair | Fair |
| Non-Aromatic | Very Poor | - | Very Poor | Poor | Excellent | Good | Good | Very Good | - | Very Poor | Fair | Excellent | Good | Poor | |
| Oil Resistance: | Low Aniline Mineral Oil | Very Poor | - | Very Poor | Poor | Excellent | Poor | Fair | Excellent | - | Very Poor | Fair | Excellent | - | Excellent |
| High Aniline Mineral Mineral Oil | Very Poor | - | Very Poor | Poor | Excellent | Good | Good | Excellent | - | Very Poor | Good | Excellent | - | Excellent | |
| Synthetic Lubricants | Very Poor | - | Poor | Poor | Fair | Fair | Very Poor | - | - | Very Poor | Poor | Poor | - | Fair | |
| Organic Phosphates | Very Poor | - | Good | Very Good | Very Poor | Poor | Very Poor | Poor | - | Very Poor | Poor | Poor | Poor | Poor | |
| Alkali Resistance: | Diluted (Under 10%) | Good | - | Very Good | Excellent | Good | Fair | Good | Excellent | - | Good | Good | Poor | Fair | Poor |
| Concentrated | Fair | - | Very Good | Good | Fair | Poor | Good | Very Good | - | Fair | Good | Poor | Poor | Poor | |
| Animal & Vegetable Oils Resistance | Poor | Poor | Good | Good | Excellent | Fair | Good | Good | Good | - | - | - | - | - | |
| Water Absorption Resistance | Very Good | Good | Very Good | Very Good | Good | Good | Good | Good | Excellent | - | - | - | - | - | |
| Oxidation Resistance | Good | Good | Excellent | Excellent | Good | Excellent | Excellent | Excellent | Excellent | - | - | - | - | - | |
| Ozone Resistance | Fair | Fair | Excelllent | Excellent | Fair | Excellent | Excellent | Excellent | Excellent | - | - | - | - | - | |
| Sunlight Aging Resistance | Poor | Poor | Very Good | Excellent | Poor | Excellent | Very Good | Excellent | Excellent | - | - | - | - | - | |
| Heat Aging Resistance | Good | Very Good | Excellent | Excellent | Excellent | Outstanding | Excellent | Excellent | Excellent | - | - | - | - | - | |
| Flame Resistance | Poor | Poor | Poor | Poor | Poor | Fair | Good | Good | Fair | - | - | - | - | - | |
| Heat Resistance | Good | Excellent | Excellent | Excellent | Excellent | Excellent | Excellent | Good | Excellent | - | - | - | - | - | |
| Cold Resistance | Excellent | Excellent | Good | Excellent | Good | Excellent | Good | Good | Excellent | - | - | - | - | - | |
| Resilience | Very Good | - | Very Good | Very Good | Fair | Good | Very Good | Good | - | Fair | Good | Poor | Fair | Very Poor | |
| Elongation (Maximum) | 700% | - | 700% | 500% | 500% | 300% | 500% | 425% | - | 500% | 300% | 400% | 625% | 200% | |