Non-Standard Customization High Quality Rubber Oring FKM EPDM NBR Silicon O-Ring Seal O Ring Sealing Silicone Oring
O-rings are sealing elements that can be used statically or dynamically in many applications.
| KELONG Rubber O-Ring Seals | ||||
| Material | Hardness(Shore A) | Temperature | Size | |
| Standard Size | Available | |||
| NBR(Buna,Nitrile) FKM(FPM) EPDM Silicone(VMQ) HNBR EFKM PU PTFE | 60-90 70-90 60-90 10-70 60-90 70-90 90~95 60~70 | 55℃-110℃ -20℃-250℃ -45℃-150℃ 60℃-280℃ 48℃-180℃ -18℃-326℃ -40℃-90℃ -100℃-280℃ | AS-568(USA) JIS-B2401(Japan) DIN-3771(Germany) BS-1516(UK) ISO3601(International) R(France) | ID≤2000mm CS≤40mm |
| Resistance | Color | Certificate | Application | |
| Hydraulic Fluid Engine Oil Chemical Ozone Steam & Hot Water Low Temperature High Temperature | Black Brown Red Green White Blue Clear Customized | IS09001 IS014001 TS16949 RoHS REACH FDA SGS | Auto Industry Construction Machinery Machine Tool Equipment Food Health Water Treatment Chemical Processing Hydraulic Pneumatic Industrial Manufaturing | |

Typical Properties of Selected Elastomer
| Rubber Material | NBR | CR | EPDM | ACM | VMQ | FVMQ | FKM |
| Tear Strength | 〇 | ⊙-〇 | ⊙ | △-⊙ | △-⊙ | △ | ⊙-〇 |
| Abrasion Resistance | ◎ | ◎ | 〇 | ⊙ | △-⊙ | △ | 〇 |
| Compression Set | 〇-◎ | 〇-◎ | 〇-◎ | 〇 | ⊙-◎ | 〇 | 〇-◎ |
| Resilience 23℃ | 〇 | 〇-◎ | 〇 | ⊙ | △-◎ | ⊙ | ◎ |
| Fire resistance | △ | 〇-◎ | △ | △ | ⊙-◎ | ◎ | ◎ |
| Weather resistance | △ | ◎ | ◎ | ◎ | ◎ | ◎ | ◎ |
| Water Resistance | ◎ | 〇 | ◎ | △ | 〇- ◎ | ◎ | ◎ |
| Steam Resistance | ⊙-〇 | ⊙ | 〇-◎ | × | ⊙-〇 | ⊙-〇 | 〇 |
| Ozone Resistance | △-⊙ | ◎ | ◎ | ◎ | ◎ | ◎ | ◎ |
| Oxygen resistance | 〇 | ◎ | ◎ | 〇 | ◎ | ◎ | ◎ |
| Acid Resistance (Dilute) | 〇 | ◎ | ◎ | △-⊙ | 〇 | ◎ | ◎ |
| Acid Resistance (Concentrate) | 〇 | ◎ | ◎ | △-⊙ | ⊙ | 〇 | ◎ |
| Base Resistance (Dilute) | 〇 | ◎ | ◎ | △-⊙ | ◎ | ◎ | ◎ |
| Base Resistance (Concentrate) | 〇 | ◎ | ◎ | △-⊙ | ◎ | 〇 | × |
| Synthetic Lubricant | 〇-◎ | △ | × | △ | × | ◎ | ◎ |
| Low Polar Lubricant | ◎ | ◎ | × | ◎ | 〇 | ◎ | ◎ |
| High Polar Lubricant | ◎ | 〇 | × | ◎ | ⊙ | ◎ | ◎ |
| Animal and Vegetable oil | 〇 | 〇 | 〇-◎ | 〇 | ◎ | ◎ | ◎ |
| Gas impermeability | 〇-◎ | 〇 | ⊙ | 〇 | △ | △ | ◎ |
| Electricity resistance | △-⊙ | ◎ | ◎ | ⊙ | 〇- ◎ | ◎ | 〇 |
| Metal Adhesion | 〇-◎ | 〇-◎ | ⊙-〇 | 〇 | 〇 | ⊙ | ⊙ |
| ◎: Excellent 〇: Good ⊙: Fair △: Poor ×: Very Poor | |||||||