The growing adoption of biodiesel and other renewable fuels is creating new challenges for vehicle manufacturers, equipment builders, and maintenance professionals. Today’s thread sealants and sealing materials must withstand not only mechanical loads but also the increasingly aggressive chemical properties of alternative fuels.
As a result, selecting an anaerobic thread sealant that provides long-term reliability in biodiesel-exposed applications has become more important than ever.
Why Does Biodiesel Present a Challenge?
Biodiesel is a renewable fuel produced from vegetable oils, animal fats, or recycled cooking oils. Its use continues to expand across commercial transportation, agriculture, and industrial applications as companies seek to reduce their environmental impact and reliance on fossil fuels.
However, compared with conventional diesel, biodiesel can be more chemically aggressive toward certain materials. Some traditional sealing materials may swell, become brittle, or gradually lose their sealing performance, potentially resulting in leaks, increased maintenance costs, and reduced system reliability.
A Modern Solution for Biodiesel Applications
Permabond LH055 is a PFAS-free anaerobic thread sealant developed for demanding industrial applications where long-term chemical resistance and reliable sealing performance are essential.
Extensive laboratory testing has demonstrated excellent resistance to HVO100 biodiesel, AdBlue®/DEF, and windscreen washer fluid. Even after hundreds of hours of immersion, the seal maintained its performance, with certain tests showing a slight increase in breakaway torque.
Key Benefits of Permabond LH055
- Excellent resistance to HVO100 biodiesel
- Resistant to AdBlue®/DEF and windscreen washer fluid
- PFAS-free formulation
- Instantly seals metallic threaded connections
- Forms an immediate pressure-tight seal
- Low breakaway torque for easier maintenance
- Solvent-free
- Optimized viscosity for complete thread coverage
- DVGW approved for gas applications
- WRAS and KTW-BWGL approved for contact with drinking water
Typical Applications
Permabond LH055 is well suited for a wide range of industrial and automotive applications, including:
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Biodiesel transfer pumps
- Fuel line fittings
- Fuel distribution equipment
- Fuel tank connections
- Metallic threaded pipe joints
- Fuel fill pipes and associated fittings
- Submersible pumps
- Industrial piping systems
- Equipment requiring periodic servicing or maintenance
Preparing for Future Industry Requirements
Industrial regulations and performance requirements continue to evolve. At the same time, the increasing use of renewable fuels and the growing demand for PFAS-free technologies are reshaping material selection across many industries.
Permabond LH055 combines reliable sealing performance, outstanding chemical resistance, PFAS-free technology, and maintenance-friendly serviceability, making it an ideal solution for manufacturers and maintenance professionals looking to future-proof their applications.
About Ulbrich Group
Ulbrich Group is a leading supplier of high-performance industrial solutions, offering a comprehensive portfolio of specialty adhesives, sealants, lubricants, silicones, and technical materials from globally recognized manufacturers.
With decades of experience supporting customers across industries such as automotive, aerospace, electronics, energy, food processing, and general manufacturing, Ulbrich Group combines premium products with expert technical consultation to help customers improve reliability, efficiency, and long-term performance.
As an authorized distribution partner of Permabond, Ulbrich Group provides access to innovative adhesive technologies designed to meet the evolving demands of modern industry. Whether your application involves biodiesel, alternative fuels, or other chemically demanding environments, our technical specialists are ready to help you identify the most effective bonding and sealing solution.
For more information about Permabond solutions or to discuss your application, please contact your local Ulbrich Group representative or visit www.ulbrich-group.com
