Data sheets › ECOLAST › NH7751 HT
Material for O-rings
ECOLAST® NH7751 HT
Perfluoroelastomer · FFKM
ECOLAST®
High temperature
Technical data
Material class
FFKM
Hardness
75
±5 Shore A
Operating temperature
−15/+330
°C
Density
1.98
g/cm³
Properties
| Property | Test method | Value | Unit |
|---|---|---|---|
| Hardness | ASTM D2240 | 75 ±5 | Shore A |
| Elongation at break | ASTM D412 | 165 | % |
| Tensile strength | ASTM D412 | 17 | MPa |
| Compression set | ASTM D395 B1 (70 h / 200 °C) | 18.5 | % |
| TR-10 | ASTM D1329 | −4 | °C |
| Density | ASTM D1817 | 1.98 ±0.03 | g/cm³ |
Shelf life15 years
Polymer contenton request
Media resistance
Resistant to
- Almost all chemicals
- Acids and alkalis, including concentrated
- Aqua regia and oxidizing agents
- Ketones, esters and amines
- Hot water and steam
- Solvents, oils and fuels
Not recommended for
- Molten alkali metals
- Elemental fluorine
- Chlorine trifluoride and similar
ECOLAST® offers almost universal resistance. Only very few media are excluded.
Check resistance against your medium
With our media resistance tool you can check in seconds whether this material is resistant to your medium.
Typical applications
Chemical & process engineering
Pumps, valves, media contact
Aggressive media
Aqua regia, acetone, acids
High-temperature technology
continuous up to +330 °C
Steam & hot water
high steam resistance
Oil & gas
aggressive media, high temperature
Plant & mechanical engineering
demanding media and temperatures
Conformity
All NH materials are REACH- and RoHS-compliant and ADI-free.
REACH-compliantRoHS-compliantADI-free
High-performance O-rings. It doesn't get any simpler.
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