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Vibration Control Silicone Rubber (Low Dynamic Magnification)
- Excellent vibration-proofing properties over a wide temperature range.
- Low dynamic magnification type with low frequency dependence of elastic modulus E’.
- Hardness range from 40 to 70 (Durometer A)
Product Information
Key Points
| Use | For molding |
|---|---|
| Molding method | Press molding, peroxide curing |
| Features | Vibration proofing (low dynamic magnification), fatigue durability |
| Industry | Automotive, transportation, railways, general industry |
Application
FF joint boots such as muffler hangers for automobiles, engine mounts, suspension bushes, etc., and other parts that absorb and block the vibration of engines transmitted to the car body.
Expected Results
- Low dynamic magnification
⇒Can be used over a wide temperature range, which is difficult with organic rubbers. - High fatigue durability ⇒ Improved life against repeated stress
| Parameter＼Product name | KE-401EM-U | KE-501EM-U | KE-601EM-U | KE-701EM-U | |
|---|---|---|---|---|---|
| Appearance | Milky white translucent | Milky white translucent | Milky white translucent | Milky white translucent | |
| Williams plasticity (10 min after remix) |
145 | 168 | 196 | 186 | |
| Standard adding quantity phr | Curing agent name | C-15/1.5 | C-15/1.5 | C-15/1.5 | C-15/1.5 |
| Test piece standard curing conditions |
Primary cure Post cure |
165℃×10m 200℃×4h |
165℃×10m 200℃×4h |
165℃×10m 200℃×4h |
165℃×10m 200℃×4h |
| Hardness (Shore A) | 41 | 52 | 61 | 74 | |
| Density at 23℃ (g/cm3) | 1.07 | 1.10 | 1.12 | 1.15 | |
| Tensile strength (MPa) | 5.3 | 7.7 | 8.4 | 7.4 | |
| Elongation at break (%) | 530 | 530 | 460 | 330 | |
| Tear strength Crescent piece (kN/m) | 25 | 34 | 21 | 12 | |
| Modulus of resilience (%) | 81 | 78 | 76 | 72 | |
| Compression set 180℃×22h (％) | 21 | 23 | 24 | 27 | |
(Not specified values)
Data of Vibration Proofing
| Viscoelasticity (Temperature: roomtemperature/frequency: 30Hz/Displacement: 400μm) |
KE-501EM-U (Low dynamic magnification) |
Reference:KE-551-U (Conventional product) |
|
|---|---|---|---|
| Elastic modulus E’（MPa） | 4.15 | 5.10 | |
| Loss modulus tanδ | 0.06 | 0.11 | |
| Dynamic magnification | E’ at 0.1Hz, 400μm（MPa） | 3.49 | 4.48 |
| E’ at 100Hz, 50μm（MPa） | 4.33 | 6.36 | |
| Dynamic magnification E’100/E’0.1 | 1.24 | 1.42 | |
・Low temperature dependency from low to high temperatures.
Product Inquiry
Vibration Control Silicone Rubber (Low Dynamic Magnification)
Inquiry FormRelated Material
Silicone Rubber for Molding（3.0MB）
Characteristic properties of Silicone Rubber Compounds（1.0MB）