Reactive Sealing Technologies

ND pre-applied reactive sealants are designed to withstand a wide range of pressures, chemical fluids and gasses. Coated onto your fasteners at our factories, the sealants arrive dry to the touch. Once installed into a mating part, the reactive components mix, initiating a chemical reaction which cures the material.


‌Expanding Thread Sealant

ST-3Expand-A-Seal is a unique microencapsulated expanding thread sealant which is pre-applied by ND to your fasteners and arrives dry to the touch and ready for assembly. Increases in volume 20 to 50% after installation, penetrating gaps in fastener threads typically left unfilled by conventional thread sealants.

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ThermosealThermoseal™ is an ND pre-applied process in which a hybrid medium strength sealant is applied to fasteners, providing excellent sealing properties along with thread locking capabilities. Pre-Applied processing creates fasteners for high temperature, high pressure applications where other thread sealing materials would fail.

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