Compressed Non-Asbestos (CNA) Sheet Gaskets
Compressed Non-Asbestos (CNA) Sheet Gaskets
Durlon® CNA sheet gasket material is a trusted sealing solution for industrial applications where traditional asbestos materials present health and environmental risks. Made from a combination of synthetic fibers, rubber compounds, and non-asbestos gasket material fillers, Durlon® compressed non-asbestos gaskets are engineered to deliver excellent chemical resistance and superior sealability. They are widely used in oil and gas, chemical processing, and power generation due to their durability and ability to withstand extreme temperatures and pressures.
Need High-Performance Sealing Solutions?
Request A Quote | View Durlon Gasket Manual
What Are CNA Sheet Gaskets?
Compressed non-asbestos gaskets are flat sheet sealing materials manufactured from a blend of synthetic fibers, elastomeric binders, and rubber compounds, combined under high pressure to produce a consistent, high-performance sealing material. They were developed as a direct, safer replacement for asbestos-based gaskets, matching or exceeding asbestos performance in chemical resistance, compressibility, and temperature tolerance, without the associated health and environmental risks.
How Durlon® CNA sheet gasket material is manufactured:
• Synthetic fibers, rubber compounds, and non-asbestos fillers are combined in precise formulations.
• The material is compressed under high pressure to create a uniform, dense gasket sheet.
• Each batch is produced under strict quality control measures to ensure consistency and reliability.
• Available in a range of grades and thicknesses to meet specific temperature, pressure, and chemical requirements.
• Sheets can be die-cut or water-jet cut to custom gasket dimensions.
Key performance advantages:
• Excellent chemical resistance across a broad range of acids, alkalis, and solvents.
• Rated for extreme temperature and pressure conditions in demanding industrial environments.
• Consistent sealability across 11 product grades within the Durlon® CNA sheet gasket range.
• Non-asbestos composition meets current health, safety, and environmental regulations.
• Available with FDA, NSF®, and other global certifications depending on grade.
Compressed Non-Asbestos Gasket Sheet Material For Extreme Conditions
Durlon® compressed non-asbestos gasket sheet material is suited to high-temperature applications, including steam services, heat exchangers, and high-pressure piping across power generation, refining, and chemical processing. Each sheet grade is formulated to perform within defined chemical and thermal limits, with full technical data available in the corresponding Product Data Sheets . The Durlon® range spans 11 grades from the 5000 series through to the 8900, covering a wide range of sealing environments.
Non-Asbestos Gasket Material: Grades and Selection
Selecting the right non-asbestos gasket material depends on the specific temperature, pressure, and chemical conditions of your application. Durlon® offers 11 CNA sheet gasket grades within this category, each formulated for defined chemical and thermal conditions. If you are unsure which grade suits your application, Durlon®’s technical team can assist. Complete the Gasket Application Data Form or request a quote to get started.
Typical industry uses:
• Oil & gas production, refining, and transmission systems.
• Chemical and petrochemical processing (pumps, valves, heat exchangers).
• Power generation, including high-temperature steam and condensate services.
• Pharmaceutical and food & beverage applications requiring certified non-asbestos gasket materials.
• Water and wastewater treatment, pulp & paper, and other heavy industrial operations.
Trust Durlon® for CNA sheet gaskets that deliver proven chemical resistance, thermal stability, and long-term sealing reliability across the world’s most demanding industries. Our engineering team is ready to assist with grade selection, custom fabrication, and technical support at every stage of your project.
Contact us today to find the right compressed non-asbestos gaskets for your application and ensure a secure, long-lasting seal.
