O-Ring Materials-PU
CNL seals is the specialized O ring manufacturer and rubber o-ring products supplier. O-ring is the most common and economic seals. O ring material：VITON/FPM/FKM/FFKM/NBR/HNBR... Custom molded products and die-cuts. O ring is suitable to use in static and dynamic applications. CNL O-ring is the best choice and high quality o-rings for static and dynamic applications.
Best● Better○ Good△ BadX
| Rubber type (ASTM Abbreviation ) |
Urethane Rubber PU |
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| Chemical structure | Polyurethane | ||
| Main feature | It is wear-resistant and high-pressure resistant, but it is not resistant to high temperatures and its mechanical strength is particularly superior. | ||
| Pure rubber properties | proportion Muni viscosity ML1+ (100℃) |
1.00 ∼ 1.30 25 ∼ 60 Liquid |
|
| Physical properties of synthetic rubber | Possible JIS hardness range General temperature range(℃) Special temperature range(℃) Tensile strength (kg/cm2) Elongation (%) Anti-elastic Cracking Wear resistance Bending resistance |
70 ∼ 95 -35 ∼ 80 -50 ∼ 100 200 ∼ 450 800 ∼ 300 ● ● ● ● |
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| Various properties of synthetic rubber | lubricating oil | Engine oil Gear Oil Motor oil Shaft lubricant Refrigeration oil Butter Lithium oil Oyster sauce |
○ △ ● ● ● ○ ○ ● |
| Working oil | Pot shaft oil Oil + Water emulsion system Water + Glycol Phosphate ester Si Brake Fluid Gear oil |
● X X X ● X ○ |
|
| Fuel oil | Light oil、kerosene Heavy oil Gasoline |
△ △ X |
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| Water | Water、Warm water Water vapor、Hot water Antifreeze water Water cutting oil |
○ X ○ ○ |
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| Drug |
Hydrochloric acid 20% |
△ X ~ △ X ~ △ X ~ △ X ~ △ X △ ~ ○ X X X ○ ○ X |
|
| Gas | LPG Urban gas Ozone Freon 12 Freon 22 |
○ ○ ● ● X |
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| Other |
Food Sanitation Law |
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| The main purpose | U-shaped pressing, O-ring, roller coupling, scraper, gasket. | ||