Product Description
NEOLUBE® No. 1260 is a high-performance paste and high-temperature anti-seize compound composed of nuclear-grade graphite and a nuclear-quality petroleum-based carrier. This sealant/lubricant exhibits all the characteristics necessary for long-life performance, even under the most severe conditions, including critical service applications up to 635°C (1175°F) and 16 MPa (2300 psi). The purity level of NEOLUBE® No. 1260 allows it to meet the stringent certification requirements of the nuclear power generation industry, such as the General Electric nonmetallic material specification D50YP12 Rev 2.
NEOLUBE® No. 1260 thread sealant paste can also be used as an effective bolt lubricant or anti-seize compound, having outperformed conventional lubricants under tests. Each lot is packaged in a 1.69-ounce squeezable tube to protect against contamination. When used at temperatures above 255°F, the petroleum-based carrier begins to volatilize; however, the graphite component remains present and will perform up to 1175°F. Weight loss begins at about 255°F, with a 6% weight loss at 390°F. NEOLUBE® No. 1260 retains good lubricating properties up to 390°F for a considerable period of time.
NEOLUBE® No. 1260 is acceptable for use in ethylene oxide service. It is not compatible with oxygen service because the oils could flash at high temperatures. The classes of organic chemicals that should not be used with NEOLUBE® No. 1260 are highly oxidizing materials such as nitrates, persulfates, perbenzoate, and peroxides. These can be used if the concentration is low (several percent) and the temperature is near room temperature. An oxidizing organic, even in small concentrations, is not compatible if an acid is present. Unacceptable inorganic chemicals include molten sodium or potassium hydroxide and chlorine dioxide.
NEOLUBE® No. 1260 has high chemical purity, excellent thermal stability, low halogen content, and excellent radiation resistance, making it very advantageous for critical service applications. It is flexible, compatible, conformable, and resilient. Once applied, NEOLUBE® No. 1260 molds into challenging spaces to fill irregularities and create a superior seal, and maintains that seal even in harsh environments. It exhibits virtually no gasket sealant creep relaxation, greatly reducing the need for periodic bolt tightening.
NEOLUBE® No. 1260 is an ideal replacement for Teflon® Thread Sealant Tape and other conventional thread sealant materials in critical high-temperature, high-pressure service. It is recommended for sealing small-diameter, close-tolerance threaded pipe joints in critical service. Joints sealed with NEOLUBE® No. 1260 are easy to disassemble even after years of high-temperature service because the paste does not harden or cure.
NEOLUBE® No. 1260 should not be used with gaskets made from EPDM, silicone, or neoprene. Nitrile and Viton gasket materials are compatible.
Nuclear Radiation Resistance
- 5.5 × 10²¹ NVT @ 1000°C: No apparent effect
- 1.5 × 10⁹ RADS gamma radiation (1.5 × 10¹¹ ergs/gram): No apparent effect
Source: Oak Ridge National Laboratory (1978). Integrated Neutron Flux: N = neutrons per cc; V = cm/sec; T = seconds.
Directions for Use
- Thoroughly clean threaded surfaces prior to application.
- Knead the tube well. For best results, snip the cap, squeeze out air, place the cap back on tightly, and knead well.
- Apply paste evenly and fill threads completely. Carefully assemble and tighten the threaded joint.
- Close the cap tightly after use.
- The joint is ready for immediate use.
Purity Level
- Total Halogen (as Cl): <25 ppm typical (450 ppm maximum spec)
- Leachable Chloride: <10 ppm typical (50 ppm maximum spec)
- Total Chlorine: <10 ppm typical (500 ppm maximum spec)
- Total Fluorine: <25 ppm typical (300 ppm maximum spec)
- Total Nitrite: <1 ppm typical (1 ppm maximum spec)
- Total Nitrate: <10 ppm typical (820 ppm maximum spec)
- Total Sulfur: <150 ppm typical (630 ppm maximum spec)
- Embrittling Metals: <250 ppm typical (500 ppm maximum spec); no single embrittling metal >200 ppm
Typical Properties
- Color: Black/Gray
- Toxicity: Low
- Carbon Content: 99.5% minimum
- Flash Point: 320°F (C.O.C.)
- Liquid Carrier: Mineral oil / petrolatum paste
- Material Incompatibility: Avoid contact with strong oxidizing agents
- Shelf Life: Minimum two years from date of first use
- Recommended Storage: ≤38°C (100°F)
- Pipe Size Limitations: ≤2″ (50.8 mm OD close-fitting threaded joints)
- Consistency: Thick paste
- Service Temperature: 1175°F (635°C)
- Pressure Resistance: 2300 psi (16 MPa)
Disclaimer
Information presented in this product data sheet is considered reliable, but conditions and methods of use, which are beyond our control, may modify results. Before adopting our products for commercial use, the user should confirm their suitability. In no case should recommendations or suggestions for the use of our products be understood to sanction violation of any patent. This information is not to be taken as a warranty or representation for which we assume legal responsibility, nor as permission or recommendation to practice any patented invention without a license. It is offered solely for your consideration, investigation, and verification.
NEOLUBE® is a Registered Trademark of Huron Industries, Inc. Teflon® is a registered trademark of DuPont Company. U.S. Patent 4,872,914.