ELTAS™ Perfluoroelastomer
FFKM delivering highly reliable sealing performance even under harsh conditions
Product Description
Our ELTAS perfluoroelastomer offers excellent heat, chemical, and steam resistance. Its ability to maintain good sealing properties even in harsh environments makes it a promising choice for various industries and applications.
Features
- Offers excellent heat resistance, capable of maintaining rubber elasticity even in high temperature environments above 300°C.
- Shows high resistance to a wide range of chemicals, including acids, alkalis, amines, and oils, as well as to high-temperature steam.
- Less likely to experience weight loss or cracking caused by plasma exposure due to its outstanding plasma resistance.
Characteristics
Perfluoroelastomers are chemically stable due to their unique main chain structure composed entirely of strong carbon-fluorine bonds. They exhibit the highest heat, chemical, steam, and plasma resistance among elastomers. This exceptional performance has led to their growing use as solutions for demanding specifications in sectors like the semiconductor, aerospace, oil and gas industries, as well as in chemical plant.
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*IRM 903: Immersion test oil for vulcanized rubber and thermoplastic rubber specified in JIS K 6258".
The table below lists our flagship ELTAS high-temperature perfluoroelastomer (HT-FFKM) grades, which maintain exceptional performance even in extreme high-temperature environments.
| Product Name | Product State | Hardness*1 (ShoreA,3S) |
Maximum Service Temperature |
Peak Temperature |
Key Featrure | Recommended Application | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| ELTAS HPE800 | Full-compound | 77 | 290℃ | > 340℃ | Carbon-black blended |
Heat resistant seals for aerospace, seals for oil drilling equipment |
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| ELTAS HPE805 | Full-compound | 70 | 300℃ | > 340℃ | Carbon-black blended |
Heat resistant seals for aerospace, seals for oil drilling equipment |
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| ELTAS HPE900 | Full-compound | 65 | 300℃ | 330℃ | Non-filler | Seals for semiconductor manufacturing equipment |
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| ELTAS HPE905 | Full-compound | 59 | 310℃ | > 340℃ | Non-filler | Seals for semiconductor manufacturing equipment |
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*1 ISO7619-1
Product List
* The data presented are representative values measured by our testing methods and are not guaranteed.
The data may change without notice.
Base Polymer / Pre-Compound
| Product Name | Product State | Mooney Viscosity ML1+10(121℃) |
Maximum Service Temperature |
Peak Temperature |
Product Type | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| ELTAS HPE103 | Base polymer | 40 | < 200℃*2 | 240℃*2 | Standard peroxide curable FFKM | |||||||||
| ELTAS HPE203 | Pre-compound | 33 | 250℃*3 | 280℃*3 | Standard peroxide curable FFKM containing high heat resistant cross-linker | |||||||||
| ELTAS HPE104 | Base polymer | 40 | 200℃*2 | 240℃*2 | High heat resistant peroxide curable FFKM | |||||||||
| ELTAS HPE204 | Pre-compound | 33 | 280℃*3 | 330℃*3 | High heat resistant peroxide curable FFKM containing high heat resistant cross-linker |
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*2 Results obtained using test compound of formulation 1.
*3 Results obtained using test compound of formulation 2.
Test Compound Formulation:
| Formulation 1 | Formulation 2 | |||
|---|---|---|---|---|
| Polymer | 100 | 100 | ||
| MT Carbon (N990) | 10 | 10 | ||
| TAIC WH-60 | 3.5 | - | ||
| Perhexa 25B-40 | 2 | 2 | ||
Full Compound
| Product Type | Peroxide Cured FFKM | Special Cured HT-FFKM | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Product Name | ELTAS HPE500 | ELTAS HPE600 | ELTAS HPE800 | ELTAS HPE805 | ELTAS HPE900 | ELTAS HPE905 | ||||||||
| Maximum Service Tempareture | 200℃ | < 200℃ | 290℃ | 300℃ | 300℃ | 310℃ | ||||||||
| Peak Temperature | 240℃ | 240℃ | > 340℃ | > 340℃ | 330℃ | > 340℃ | ||||||||
| Hardness*4 (ShoreA,3S) |
88 | 78 | 77 | 70 | 65 | 59 | ||||||||
| Tensile Strength*4 | 21.8 MPa | 22.3 MPa | 22.0 MPa | 25.6 MPa | 15.6 MPa | 18.8 MPa | ||||||||
| Elongation at Break*4 | 120% | 160% | 150% | 180% | 250% | 240% | ||||||||
| Compression Set*5@200℃/70h | 11% | 17% | - | - | - | - | ||||||||
| Compression Set*5@300℃/70h | - | - | 24% | 23% | 38% | 19% | ||||||||
| TR10*6 | -3℃ | -1℃ | 1℃ | -2℃ | -1℃ | -1℃ | ||||||||
| Key Featrure | Carbon-black blended high hardness type |
Carbon-black blended chemical resistant type |
Carbon-black blended |
Carbon-black blended |
Non-filler | Non-filler | ||||||||
*4 ISO7619-1, ISO37 Type1
*5 ASTM D1414/D395, P-24 O-ring
*6 ISO2921
Chemical Resistance Chart
| Chemical Name | Product Name | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| ELTAS HPE500 | ELTAS HPE600 | ELTAS HPE800 | ELTAS HPE805 | ELTAS HPE900 | ELTAS HPE905 | ||||||||||
| 33% Acetic acid (100℃ × 200h) | E | A | A | A | A | A | |||||||||
| Glacial acetic acid (100℃ × 200h) | E | B | C | C | C | C | |||||||||
| 98% H2SO4 (80℃ × 70h) | A | A | A | A | A | A | |||||||||
| 65% HNO3 (80℃ × 168h) | C | A | B | A | B | B | |||||||||
| HCl (80℃ × 200h) | A | A | B | B | B | B | |||||||||
| 50% NaOH (80℃ × 72h) | A | A | B | B | B | B | |||||||||
| 50% KOH (125℃ × 168h) | A | A | E | E | E | E | |||||||||
| Methanol (80℃ × 200h) | A | A | B | B | B | B | |||||||||
| Methyl ethyl ketone (80℃ × 200h) | C | C | D | B | D | D | |||||||||
* The evaluation criteria for chemical resistance are as follows.
| ΔV | ΔHs | |||
|---|---|---|---|---|
| A | < ±5 | < ±3 | ||
| B | < ±10 | < ±6 | ||
| C | < ±15 | < ±9 | ||
| D | < ±20 | < ±12 | ||
| E | ±20 < | ±12 < | ||
Industry-Specific Solutions
Our ELTAS perfluoroelastomer offers excellent heat, chemical, and steam resistance, making it suitable for use in demanding environments within semiconductor manufacturing equipment, as well as the aerospace, oil & gas, and chemical industries.
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