Antimony-impregnated graphite is a self-lubricating, wear-resistant sealing material created by deeply impregnating molten antimony into the micro-pores of carbon graphite using specialized vacuum or pressure processes. Because antimony uniquely expands as it solidifies, it perfectly fills all internal microscopic voids and eliminates micro-porosity.
This material not only inherits graphite's excellent self-lubrication and heat resistance but also gains significantly enhanced mechanical strength and density thanks to the infused metal. Consequently, it is widely used for high-end mechanical seals and wear-resistant bearings in the petrochemical, aerospace, and chemical industries, particularly excelling under extreme pressures and harsh operating conditions.
01
Doubled Compressive and Mechanical Strength
The infusion of antimony builds strong "metal bridges" within the carbon structure, increasing its compressive strength by 2 to 3 times compared to standard graphite.
02
Zero Permeability and Blister Preventio
With its micro-pores completely sealed, antimony-impregnated graphite achieves virtually "absolute zero permeability."
03
Exceptional Dry-Running Performance
Despite its high hardness, it retains graphite's outstanding self-lubricating properties with a very low friction coefficient.
04
Superior High-Temperature and Corrosion Resistance
Antimony itself is highly resistant to oxidation and corrosion at room temperature. Their combination enables the antimony-impregnated graphite to operate stably in harsh environments at 400°C or higher
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