Tec-U-Seal™ provides reliable sealing and vibration control for fasteners by forming a compressible, elastomeric barrier under the fastener head. Designed for pre-application, it eliminates the need for traditional sealing components during assembly. Selected formulations also function as dielectric barriers, electrical insulators, isolators, cushioning materials, or anti-scratch coatings for demanding applications.
Tec-U-Seal™ is a family of pre-applied fastener sealants engineered for under-head encapsulation, sealing, seating, and functional surface protection. The resin matrix material flows and conforms to mating surfaces, filling voids and creating a secure seal under compression.
Applied directly to fasteners, washers, rivets, clips, and related components, the coating cures in place and becomes an integral part of the assembly. Its elastomeric properties absorb shock, accommodate thermal expansion, and maintain sealing integrity under dynamic conditions. Depending on the formulation, Tec-U-Seal™ can be tailored to provide electrical insulation, mechanical isolation, cushioning, and surface protection for specific application requirements.
Available in multiple grades, including thermoset and thermoplastic formulations with heat- or UV-curing systems, Tec-U-Seal™ can be tailored to meet specific sealing, mechanical, electrical, and processing requirements.
This technology provides a cost-effective alternative to O-rings, molded seals, and die-cut gaskets while improving assembly efficiency and reducing component complexity.
Primary Usage: Under-head sealing, seating, vibration control, electrical isolation, and surface protection for fasteners and components
Material Type: Resin matrix sealing compound
Medium: Pre-applied coating (varies by formulation)
Appearance: Available in multiple colors for identification and inspection
Character: Elastomeric, compressible material that cures in place to form a sealing barrier
Performance, Advantages and Benefits
Integrated Sealing Performance: Forms a compressible sealing barrier under the fastener head, effectively preventing fluid ingress and leakage.
Vibration & Noise Control: Absorbs shock and movement between mating parts, reducing vibration, squeak, and rattle in assembled systems.
Electrical Isolation & Surface Protection: Selected formulations provide dielectric insulation, electrical isolation, anti-scratch protection, and functional surface enhancement for sensitive assemblies.
Assembly Efficiency: Pre-applied design eliminates secondary sealing components such as O-rings and gaskets, mylar spacers, simplifying assembly and reducing labor.
Material Versatility: Adheres to a wide range of substrates including metals and coated surfaces, ensuring reliable performance across applications.
Formulation Flexibility: Available in multiple grades, including thermoset and thermoplastic formulations with heat- or UV-curing systems, allowing performance to be optimized for specific application requirements.
Durability in Harsh Environments: Provides strong resistance to automotive fluids, high temperatures, chemicals, and environmental exposure.
What is Tec-U-Seal™ used for?
Tec-U-Seal™ is used for under-head sealing and seating of fasteners, providing fluid sealing, vibration control, electrical isolation, and surface protection in assembled components.
How does Tec-U-Seal™ compare to O-rings or gaskets?
Tec-U-Seal™ is a pre-applied alternative that eliminates the need for separate sealing components, reducing assembly steps and improving consistency.
Can Tec-U-Seal™ be used with automated assembly?
Yes. Tec-U-Seal™ is designed for pre-application and is ideal for automated assembly processes where on-site sealing is not practical.
What types of surfaces is Tec-U-Seal™ compatible with?
It is compatible with most metal substrates and coated surfaces, depending on the specific formulation.
Are different grades available?
Yes. Tec-U-Seal™ is available in multiple grades, including thermoset and thermoplastic formulations with heat- or UV-curing options, allowing performance to be tailored for different applications.
Does Tec-U-Seal™ provide electrical insulation?
Yes. Selected formulations function as dielectric barriers and electrical insulators for electro-mechanical and electronic assemblies requiring electrical isolation.
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