When it comes to fluid systems, leaks are not an option. Hernon’s industrial thread sealants are engineered for dependable sealing and locking of threaded fittings in a wide range of environments. Whether you're assembling hydraulic lines, pneumatic systems, or chemical processing equipment, our thread sealants provide a high-performance, pressure-resistant seal that prevents leakage and withstands vibration, thermal cycling, and harsh media.
Our anaerobic formulations cure in the absence of air and in contact with metal, forming a durable seal that resists loosening over time. Available in a variety of viscosities and strengths, Hernon thread sealants are ideal for OEM manufacturing and maintenance operations across the automotive, aerospace, energy, and industrial sectors.
Benefits of Hernon Thread Sealants:
Pressure-resistant and leak-proof sealing
Resistant to vibration, chemicals, and temperature extremes
Compatible with automated dispensing equipment
NSF-certified options available for potable water systems
Protect your systems, improve reliability, and simplify assembly. Browse all thread sealants here to find the right solution for your application.
Dripstop® 945 is a high-performance adhesive/sealant specifically formulated for the sealing and mild locking of hydraulic and pneumatic threaded parts used with hydraulic and pneumatic equipment. Dripstop® 945 will seal pipe threads, standard nuts and bolts, fittings for hydraulic and pneumatic systems, air conditioners, fittings for refrigeration equipment, and all types of water and chemical processing valves and equipment, including steam up to 350°F. Dripstop® 945 is a single component, anaerobic adhesive/sealant, which will provide a rapid cure at room temperature. Upon cure, Dripstop® 945 becomes a highly crosslinked thermoset plastic preventing leakage from shock, vibration as well as corrosive liquids and atmospheres.
Dripstop® 947 is a high-performance adhesive/sealant specifically formulated for the sealing and mild locking of hydraulic and pneumatic threaded parts used with hydraulic and pneumatic equipment. Dripstop® 947 will seal pipe threads, standard nuts and bolts, fittings for hydraulic and pneumatic systems, air conditioners, fittings for refrigeration equipment, and all types of water and chemical processing valves and equipment, including steam up to 350°F. Dripstop® 947 is a single component, thixotropic (non-migrating) anaerobic adhesive/sealant, that does not contain PTFE, and will provide a rapid cure at room temperature. Upon cure, Dripstop® 947 becomes a highly crosslinked thermoset plastic preventing leakage from shock, vibration as well as corrosive liquids and atmospheres.
SelfSealer® 622 is a tough, pre-applied, non-hardening threaded sealant. SelfSealer® 622 provides an instant seal on different pipe threads and can be used up to eight (8) times without recoating. SelfSealer® 622 is water based, non-toxic, safe and can be applied easily without special handling precautions. SelfSealer® 622 provides resistance to vibrational loosening because of its prevailing torque characteristics. Therefore, it is very effective on non-locking applications.
SelfSealer® 618 is a tough, pre-applied, non-hardening threaded sealant. When dried, it becomes a resilient, tight clinging, non-curing sealant for tapered or straight threads. It provides an instant seal on different pipe threads and can be used up to eight (8) times without recoating. SelfSealer® 618 is water based, non-toxic, safe and can be applied easily without special handling precautions. It provides resistance to vibrational loosening because of its prevailing torque characteristics. Therefore, it is very effective on non-locking applications.
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