Posted on June 2, 2026 by Celese Pauley, Vice President of Sales
In the world of industrial sealing, choosing the right gasket material is crucial to ensure safety, efficiency, and reliability in various applications. Durlon® offers a range of gasket materials designed to meet diverse needs, and today, we are focusing on three economical options: Durlon® 7900, 7925, and 7950. These gasket materials are ideal for general service applications and provide a reliable alternative when operating within specific temperature and pressure ranges.
Key Features of Durlon® 7900, 7925, and 7950:
The Durlon® 7900 series gasket materials are constructed from aramid fibers with an NBR (Nitrile Butadiene Rubber) binder, a combination that provides excellent strength, flexibility, and resistance to a variety of fluids. The materials are specifically designed for mild service in piping and equipment, including applications in steam, hydrocarbons, and refrigerants.
Performance Characteristics of Economical Gasket Materials:
Temperature Range: These materials are suitable for applications with temperatures ranging from -40°F to a maximum of 700°F, with a continuous maximum operating temperature of 500°F.
Pressure Capacity: The maximum pressure capacity is 1,200 psi, making them versatile for various low to moderate-pressure applications.
Compliance and Certifications: The Durlon® 7900 series is compliant with California Proposition 65 and meets RoHS and REACH Declaration standards, ensuring adherence to environmental and safety regulations.
Physical Properties and Advantages:
Density: The materials have a density of 106 lbs/ft³.
Compressibility and Recovery: With a compressibility of 7-17% and a recovery rate of ≥40%, these gaskets offer good sealing performance under varying conditions.
Tensile Strength: A tensile strength of 1,600 psi provides durability and resistance to mechanical stress.
Fluid Resistance: The materials demonstrate excellent fluid resistance, with minimal thickness and weight changes when exposed to IRM 903 Oil at 300°F and ASTM Fuel B at 70°F.
Applications Across Industries:
The versatility of Durlon® 7900, 7925, and 7950 makes them suitable for various applications across multiple industries, including:
Chemical Processing: Reliable in environments where exposure to various chemicals is common.
General Industry and OEM Services: Ideal for everyday use in equipment and piping across different sectors.
Mining and Rail-Tank Car Services: Robust performance in challenging conditions, providing dependable sealing in critical applications.
Why Choose Durlon® 7900, 7925, and 7950?
When selecting a gasket material, it’s important to consider the specific requirements of your application. The Durlon® 7900 series offers an economical and efficient choice for general service applications where conditions remain within specified temperature and pressure limits. The combination of a robust aramid fiber system with an NBR binder provides a balanced solution of strength, flexibility, and chemical resistance.
Conclusion:
For industries looking for a cost-effective gasket material without compromising on quality and performance, Durlon® 7900, 7925, and 7950 provide an excellent choice. With their broad applicability, regulatory compliance, and reliable performance characteristics, they stand out as versatile and practical options in the world of industrial gaskets.