Mar 4, 2025
Gasket residue removal is a critical step in maintaining a secure and reliable seal in industrial applications. Gaskets function to create a tight seal between joined surfaces, preventing leaks and ensuring system integrity. However, residue left behind from previous gaskets can compromise this seal, leading to potential failures. This article provides a comprehensive guide to effectively removing gasket residue and highlights the benefits of Durlon® Joint Sealant, a premium expanded PTFE form-in-place sealant.
Removing Heat-Cured Gaskets: Best Practices
In industrial settings, gaskets are often located in hard-to-reach areas, making residue removal challenging. Heat-cured gaskets require additional effort due to their adhesion and exposure to extreme conditions. Follow these steps for efficient removal:
- 1. Use the Right Tools: Open the flanged joint using specialized tools like soft wedges or flange spreaders to avoid damaging the flange seating surfaces.
- 2. Scrape with Caution: Utilize a plastic scraper or nylon brush to remove gasket remnants. Avoid razor blades or metal scrapers, as they can scratch the metal surfaces, creating potential leak paths.
- 3. Apply Solvent-Based Gasket Removers: Chemical gasket removers can help break down residue effectively. Ensure compatibility with the gasket material and completely remove any residual solvent to prevent contamination.
- 4. Inspect the Flange: After removing the gasket, inspect the flange for damage or wear before installing a new seal.
Tips on How to Remove Old Gaskets
Regardless of whether a gasket is heat-cured or easily removable, the procedure remains largely the same. Attention to detail is key to ensuring a clean, residue-free surface. Keep these points in mind:
- Never install a new gasket over remnants of an old one.
- Even the smallest gasket fragment can prevent proper conformation, leading to immediate leaks or blowouts.
- Use only manufacturer-approved lubricants, as incorrect ones can degrade gasket binders, particularly in materials like EPDM and SBR.
Safe Gasket Removal Techniques
Proper gasket removal ensures safe operation in critical systems, including pumps, compressors, and heat exchangers. Follow the same procedures as installation, but in reverse order:
- 1. Follow Manufacturer Guidelines: Always adhere to the procedures outlined in the gasket manufacturer’s manual.
- 2. Minimize Downtime: Gasket removal should be swift yet thorough to reduce operational delays.
- 3. Inspect Fasteners: Check for corrosion, wear, or damage and replace any compromised fasteners.
- 4. Dispose of Gaskets Properly: Certain gaskets may contain hazardous materials such as white asbestos (chrysotile). Follow disposal guidelines set by regulatory bodies like the International Chrysotile Association (ICA).
Enhancing Gasket Performance with Sealants
Gaskets are designed to deform and fill surface imperfections for a tight seal. To further improve their performance, consider adding a high-quality sealant such as Durlon® Joint Sealant:
- Available in various thicknesses and equipped with high-quality adhesive backing for easy installation.
- Easily cut to size with scissors, ensuring a precise fit.
- Chemically inert, resistant to creep relaxation, and stable under high temperatures.
- Offers high tensile strength and durability, making it ideal for industrial applications.
Ensuring a clean flange surface is crucial for maintaining an effective seal and preventing leaks. By following best practices for gasket residue removal and using Durlon® Joint Sealant, you can enhance the reliability and longevity of your gasketed joints.
For more information on Durlon® Joint Sealant or our extensive gasket range, contact our team today.