描述
Krytox XHT-EP299 Grease is an extreme high-temperature PFPE (perfluoropolyether) extreme pressure grease from Chemours’ Krytox performance lubricants portfolio, genuinely manufactured by Chemours and imported as original product. As an authorized distributor and trader, we supply genuine material with full traceability and direct access to official Chemours technical documentation. For more product options and company information, please visit our website at https://szrqchem.com/.
Krytox XHT-EP299 Grease is a high-performance extreme-pressure lubricant formulated with perfluoropolyether (PFPE) combined with a polytetrafluoroethylene (PTFE) thickener and EP additives. The EP additives in Krytox XHT-EP299 provide additional protection by forming a barrier that offers antifriction and anti-wear properties for metal surfaces.
This grease has been formulated for high-temperature applications that need both high load-carrying capacity and anticorrosion protection. While most petroleum-based products degrade below 99°C (210°F), Krytox XHT-EP299 Grease operates continuously from -5°C to 300°C (23°F to 572°F) with peak temperatures up to 316°C (600°F) for short periods. The grease is nonflammable, chemically inert, and nonreactive, resulting in zero chemical reactivity. As such, it is compatible with most materials.
Krytox XHT-EP299 Grease is not FDA compliant (not NSF H-1 registered) and is not intended for food contact applications. It is specially formulated for high-speed, high-load applications, such as bearings and gears, as well as extreme high-temperature, extreme-pressure industrial environments.
Key Features of Krytox XHT-EP299 Grease
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Extreme Pressure (EP) Additives – Formulated with high-pressure additives that form a barrier offering antifriction and anti-wear properties for metal surfaces; shows improvement in load carrying and wear prevention over standard Krytox greases
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Anti-Corrosion Protection – Provides anticorrosion protection in moist conditions and environments where condensation may lead to rusting
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Extreme High-Temperature Performance – Continuous operation from -5°C to 300°C (23°F to 572°F), with peak temperatures up to 316°C (600°F)
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Excellent Thermal Stability – Does not break down or oxidize, even at high temperatures
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High Viscosity Base Oil – ISO Grade 1000; viscosity of 1,005 cSt at 40°C and 3,500 cSt at 20°C
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Nonflammable & Chemically Inert – Contains no hydrogen; safe for oxygen service and systems exposed to reactive chemicals
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Excellent Material Compatibility – Compatible with most metals, plastics, and elastomers
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Low Volatility & Vapor Pressure – Suitable for vacuum and low-pressure environments
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NLGI Grade 2 – Standard grease consistency
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Chemical Resistance – Insoluble to most solvents except highly fluorinated fluids
Typical Applications for Krytox XHT-EP299 Grease
| Industry | Typical Components & Considerations |
|---|---|
| Conveyor Chains | Chains subjected to moist conditions or frequent temperature cycling that could allow condensation and rusting to occur |
| Bearings & Gears | High-speed, high-load bearings and gears |
| Aerospace | Aerospace components requiring extreme temperature and extreme pressure lubrication |
| Automotive | Automotive components exposed to high temperatures and loads |
| Industrial Equipment | Demanding extreme-pressure industrial applications |
| Vacuum & Low-Pressure Environments | Suitable for applications in vacuum and low-pressure environments |
| High-Temperature Industrial | Extreme-high-temperature equipment in demanding industrial environments |
| Pulp Drying Ovens | Bearing lubrication in high-temperature oven applications |
| Valves | Valve lubrication in extreme temperature and pressure environments |
| Fasteners | Lubrication of fasteners in corrosive or high-temperature environments |
| O-Rings | O-ring protection in extreme conditions |
Material Advantages
Krytox XHT-EP299 Grease is a high-performance PFPE grease that delivers:
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Extreme Pressure Performance – Formulated with high-pressure additives, the 29X series shows improvement in load carrying and wear prevention over standard Krytox greases. The EP additives form a barrier offering antifriction and anti-wear properties for metal surfaces
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Anti-Corrosion Protection – Provides superior corrosion control and prevention in moist conditions and temperature-cycling environments where rust may develop
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Unmatched High-Temperature Capability – Continuous operation up to 300°C (572°F) with peaks to 316°C (600°F), far exceeding the capabilities of conventional greases
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Excellent Thermal & Oxidative Stability – Does not break down or oxidize, even at high temperatures
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Inherent Safety – Nonflammable, chemically inert, and nonreactive, making it safe for use in oxygen service and reactive chemical environments
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Extended Service Life – High viscosity and thermal stability reduce the need for frequent relubrication, lowering maintenance costs and downtime
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Excellent Material Compatibility – Compatible with most metals, plastics, and elastomers
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Highest Viscosity in EP Series – ISO Grade 1000 with viscosity of 1,005 cSt at 40°C and 3,500 cSt at 20°C, providing excellent viscosity retention at elevated temperatures
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Versatile Applications – From lubricating conveyor chains to high-speed bearings and gears
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Vacuum Compatibility – Suitable for vacuum and low-pressure environments
Chemours, as the inventor of Krytox, brings decades of PFPE lubricant expertise, ensuring batch-to-batch consistency, reliable supply, and full technical support.
Typical Properties
| Property | Krytox XHT-EP299 Grease | Unit / Remarks |
|---|---|---|
| Product Type | PFPE Extreme High-Temperature Extreme Pressure Grease | – |
| Appearance | White / Creamy | – |
| NLGI Grade | 2 | – |
| ISO Grade | 1000 | – |
| Base Chemistry | Perfluoropolyether (PFPE) | – |
| Thickener Type | PTFE (Polytetrafluoroethylene) | – |
| Base Oil Viscosity @ 20°C | 3,500 cSt | – |
| Base Oil Viscosity @ 40°C | 1,005 cSt | – |
| Base Oil Viscosity @ 100°C | 85 cSt | – |
| Oil Viscosity Index | 179 | – |
| Oil Pour Point | -5°C (23°F) | – |
| Estimated Useful Range | -5°C to 300°C (23°F to 572°F) | – |
| Peak Temperature | Up to 316°C (600°F) | Short periods |
| Food Contact Approval | No – Not NSF H-1 registered | – |
| Additives | High pressure and anticorrosion | – |
| Chemical Behavior | Nonflammable, chemically inert, insoluble to most solvents | – |
| CAS Number | 28474-30-8 | – |
| Packaging | 57 g syringe; 2 oz, 8 oz tubes; 0.5 kg, 1 kg jars; 5 kg, 20 kg pails | – |
| Country of Origin | USA | – |
Important Notes on Typical Data:
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Values listed are typical and sourced from Chemours official data sheets. They do not constitute binding product specification.
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Batch-to-batch deviations may exist. For critical applications, validate performance with batch-specific COA certificate.
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Final performance depends on application conditions, operating environment, and relubrication intervals.
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Chemours official TDS shall serve as definitive technical reference. Request the latest official TDS from our sales team.
XHT-EP298 vs XHT-EP299 Comparison
| Property | XHT-EP298 | XHT-EP299 |
|---|---|---|
| ISO Grade | 680 | 1000 |
| Estimated Useful Range, °C | -15 to 294 | -5 to 300 |
| Estimated Useful Range, °F | 5 to 560 | 23 to 572 |
| Base Oil Viscosity @ 20°C | 2,560 cSt | 3,500 cSt |
| Base Oil Viscosity @ 40°C | 738 cSt | 1,005 cSt |
| Base Oil Viscosity @ 100°C | 65 cSt | 85 cSt |
| Oil Viscosity Index | 158 | 179 |
| Oil Pour Point, °C | -15 | -5 |
| Oil Pour Point, °F | -5 | 23 |
| Key Feature | Standard high-viscosity EP | Highest viscosity EP / Highest VI |
Processing & Application Guidelines
| Consideration | Details |
|---|---|
| Application | Apply to clean surfaces. Grease should be applied using standard grease application equipment (grease gun, automatic lubricators, or manual application). Ensure surfaces are free from contaminants before application |
| Temperature Range | Designed for continuous operation from -5°C to 300°C (23°F to 572°F), with peak temperatures up to 316°C (600°F) for short periods |
| High-Load Applications | Formulated for high-speed, high-load applications such as bearings and gears |
| Moisture Protection | Provides anticorrosion protection in moist conditions and environments where condensation may occur |
| Vacuum Compatibility | Suitable for vacuum and low-pressure environments |
| Storage | Store in original, sealed containers in a cool, dry place away from direct sunlight |
| Shelf Life | Extended shelf life; refer to product packaging for specific expiration date |
Critical Application Warnings:
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Not for Food Contact: Krytox XHT-EP299 Grease is not FDA compliant (not NSF H-1 registered). Do not use in applications requiring food-grade lubricants.
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Extreme Pressure Use: Formulated for high load-carrying capacity applications. Excellent for conditions requiring both extreme pressure and corrosion protection.
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Temperature Considerations: While the grease can withstand temperatures up to 300°C continuously, peak temperatures up to 316°C are only for short periods.
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Surface Preparation: Ensure clean application surfaces to maximize lubricant adhesion and performance.
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Material Compatibility: Compatible with most metals, plastics, and elastomers. However, always verify compatibility with specific materials in your application.
Related Products
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Explore Krytox XHT Series – Browse all Krytox XHT extreme high-temperature lubricants
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Explore Krytox Lubricants – Browse all Krytox performance lubricant options
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About Our Company – Learn more about our supply capabilities and quality assurance
Technical Documents
| Document Type | Description & Source |
|---|---|
| Chemours Official TDS | Complete physical, thermal, and mechanical properties of Krytox XHT-EP299 Grease, issued by Chemours original |
| Chemours Official SDS | GHS-compliant chemical safety documentation, original Chemours document |
| Chemours Distributor Authorization Certificate | Proof of our authorized-distributor qualification for Chemours Krytox series, available upon request |
| COA (Certificate of Analysis) | Batch-specific quality certification |
Request any document above by:
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Email:
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Online form: Our contact page
We reply within one working business day. Please clearly state product (Krytox XHT-EP299 Grease) and document type you require.
FAQ
Q1: What is Krytox XHT-EP299 Grease and what is it used for?
A: Krytox XHT-EP299 Grease is the highest viscosity extreme pressure grease in the XHT series from Chemours. It is formulated for high-temperature applications (up to 300°C continuous, 316°C peak) that need both high load-carrying capacity and anticorrosion protection. It is widely used in conveyor chains, high-speed bearings, gears, aerospace, automotive, and other extreme high-temperature industrial applications.
Q2: What is the NLGI grade of Krytox XHT-EP299 Grease?
A: Krytox XHT-EP299 Grease has an NLGI grade of 2.
Q3: What is the ISO grade and base oil viscosity of Krytox XHT-EP299 Grease?
A: The ISO grade is 1000. The base oil viscosity is 1,005 cSt at 40°C and 3,500 cSt at 20°C, making it the highest viscosity in the XHT EP series.
Q4: What additives does Krytox XHT-EP299 Grease contain?
A: Krytox XHT-EP299 Grease contains high pressure (extreme pressure) and anticorrosion additives. The EP additives form a barrier offering antifriction and anti-wear properties for metal surfaces.
Q5: Is Krytox XHT-EP299 Grease NSF H-1 registered for food contact?
A: No. Krytox XHT-EP299 Grease is not NSF H-1 registered and is not approved for food contact applications.
Q6: Is Krytox XHT-EP299 Grease flammable?
A: No. Krytox XHT-EP299 Grease is nonflammable, chemically inert, and insoluble to most solvents. It is safe for oxygen service.
Q7: What is the maximum operating temperature of Krytox XHT-EP299 Grease?
A: Continuous service up to 300°C (572°F), with peak temperatures up to 316°C (600°F) for short periods.
Q8: What is the difference between XHT-EP298 and XHT-EP299?
A: XHT-EP299 has a higher ISO grade (1000 vs 680) , higher base oil viscosity (1,005 cSt vs 738 cSt at 40°C) , higher viscosity index (179 vs 158) , and a higher temperature range (-5°C to 300°C vs -15°C to 294°C).
Q9: Is Krytox XHT-EP299 Grease suitable for high-speed applications?
A: Yes. Krytox XHT-EP299 is suitable for high-speed, high-load applications, such as bearings and gears.
Q10: What is the difference between XHT-EP299 and XHT-AC/ACX?
A: XHT-EP299 contains extreme pressure (EP) additives for high load-carrying capacity and is not NSF H-1 registered. XHT-AC and XHT-ACX are formulated primarily for anti-wear and rust protection and are NSF H-1 registered.
Q11: What packaging options are available for Krytox XHT-EP299 Grease?
A: Available in 57 g syringe; 2 oz and 8 oz tubes; 0.5 kg and 1 kg jars; as well as 5 kg and 20 kg pails.
Q12: What is the CAS number of Krytox XHT-EP299 Grease?
A: The CAS number is 28474-30-8.
Q13: What is the shelf life of Krytox XHT-EP299 Grease?
A: Krytox XHT-EP299 Grease has an extended shelf life when stored in unopened, proper conditions. Refer to product packaging for specific expiration dates.
Q14: What is the lead time for orders?
A: Regular orders ship within 7-10 working days after payment confirmation. Large-volume or urgent orders can be negotiated separately.
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Sample Policy:
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Samples are for laboratory validation tests only, not for production use.
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Buyer bears international sample-shipping freight.
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If bulk-product performance deviates from sample reference, Chemours official TDS serves as the authoritative benchmark.
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After-Sales Support
| Service | Details |
|---|---|
| Quality Inspection Period | All quality-related claims must be submitted within 7 working-days after delivery, supported by test data and photographic evidence. |
| Return / Exchange Policy | Confirmed product defects caused by our side trigger replacement or refund. Terms and conditions apply. |
| Logistics Damage | Report shipping damage directly to carrier immediately upon goods receipt. We assist with claim-document preparation. |
| Technical Support | Remote technical guidance available. On-site troubleshooting can be arranged upon special request. |
| Export Documentation | We supply commercial invoice, packing list, bill of lading, COA, and additional compliance certificates on request. |
Disclaimer
DISCLAIMER: All technical data is referenced from original Chemours typical values for Krytox XHT-EP299 Grease. Our company acts as authorized distributor/trader rather than original manufacturer. Final performance depends on application conditions, operating environment, and maintenance practices. Buyers shall independently validate product suitability for individual applications. Our firm bears no liability for lubricant failure caused by improper application or improper usage. Always reference the latest Chemours official TDS of Krytox XHT-EP299 Grease as the definitive specification.
