Knowde Enhanced TDS
Identification & Functionality
- Chemical Family
- Polymer Name
- Technologies
- Product Families
Features & Benefits
- Materials Features
- Product Background
Perfluoroelastomers (FFKM) rubbers are fully-fluorinated fluorocarbon elastomers. This compound is both USP Class VI and FDA approved making it suitable for use in the pharma, medical and food industries. The compound has been tested in many fluids (see below) demonstrating its suitability for use in demanding environments that use aggressive chemicals.
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Advantages Of FFKM
- They are the most chemically resistant elastomers on the market and have outstanding high temperature, chemical, gas, and liquid permeation resistance. Furthermore, FFKM has excellent steam, ozone and weathering resistance and delivers exceptional performance for sealing thanks to its elastic properties. Because of this, FFKM is highly suitable for use within hazardous environments using aggressive chemicals.
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Disadvantages Of FFKM
- There are not many disadvantages of FFKM other than the fact that it is extremely expensive and has poor physical properties and poor low-temperature properties. Despite its suitability in hazardous environments, FFKM does not perform well within below freezing conditions.
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Applications & Uses
- Applications
- Plastics & Elastomers End Uses
- Typical Applications
- Core Sleeves
- Chemical Processing
- Oil & Gas
- Aircraft Engines
- Heavy Duty Machinery
- Automotives
Properties
- Color
- Typical Properties
- Note
* - Press Cure 15 minutes at 177°C, Post Cure 24 Hours at 250°C
| Value | Units | Test Method / Conditions | |
| Hardness* | 71 - 81 | Shore A | ISO 48 |
| Tensile Strength* | min. 15.8 | MPa | ISO 37 |
| Elongation at Break* | min. 129 | % | ISO 37 |
| Compression Set (70 hours at 200°C, 25% Deflection)* | max. 15 | % | ASTM D 395 Method B |
| Volume Swell (168 hours, 100°C, Toluene - Reflux) | 5.0 | % | — |
| Volume Swell (168 hours, 85°C, HNO₃ - 65%) | max. 5 | % | — |
| Volume Swell (168 hours, 100°C, Acetic Acid - 99.5%) | max. 5 | % | — |
| Volume Swell (168 hours, 100°C, Ammonia - 30%) | 7.0 | % | — |
| Volume Swell (336 hours, 60°C, Ethylenediamine) | 15.0 | % | — |
| Volume Swell (168 hours, 200°C, Water) | 5.0 | % | — |
| Volume Swell (168 hours, 200°C Steam) | max. 5 | % | — |
| Service Temperature | max. 275 | °C | — |
Regulatory & Compliance
- Certifications & Compliance