HNBR (Hydrogenated Nitrile Butadiene Rubber) from Carlock Sealing is a high-performance elastomer designed to bridge the gap between standard NBR and premium FKM. By saturating the nitrile polymer with hydrogen, we create a material that offers significantly higher thermal stability and mechanical strength. Precision-machined by Carlock Sealing, our HNBR seals are specifically engineered for oil and gas applications where resistance to high-pressure extrusion, heat, and aggressive chemical additives is critical.
- Outstanding Mechanical Strength: Exceptional tensile and tear strength, making it highly resistant to extrusion and wear in high-pressure drilling.
- Superior Thermal Stability: Operates reliably in temperatures up to +150°C (+302°F), far exceeding the limits of standard NBR.
- H2S & Sour Gas Resistance: Proven performance in environments containing hydrogen sulfide (H2S), amine-based corrosion inhibitors, and steam.
- Excellent Oil & Fuel Resistance: Maintains integrity when exposed to modern drilling muds, crude oil, and diesel-based fluids.
Technical Disclaimer: While HNBR offers excellent all-around resistance, it is not recommended for use with chlorinated hydrocarbons or polar solvents (like Acetone). For specific sour gas concentrations or HPHT (High Pressure High Temperature) environments.
FAQ:
Q: When should I use HNBR instead of standard NBR?
A: Carlock Sealing recommends HNBR when your application involves temperatures above 100°C, exposure to H2S gas, or high-pressure cycles where standard NBR would suffer from extrusion or rapid wear.
Q: Is HNBR compatible with steam?
A: Yes. HNBR offers significantly better resistance to steam and hot water than standard nitrile, making it a robust choice for well-service applications.
Q: Why choose Carlock Sealing for machined HNBR seals?
A: HNBR is a premium material. Our CNC machining process allows for custom-profile seals and non-standard dimensions without expensive mold fees, ensuring you get the exact fit for critical oilfield hardware.
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