ND Patch® Hi-Temp is a high temperature pre-applied threadlocking coating, which is fused to internal or external threads of a fastener making it self-locking and self-sealing. Dry to the touch and ready for use right out of the box; ND Patch performs immediately upon assembly with no curing time required.
When a fastener coated with ND Patch Hi-Temp is mated to its corresponding hole or mating fastener, the material is compressed. This compression creates a dam-like action on the opposite side of the coated fastener creating very strong metal-to-metal contact. When ND Patch Hi-Temp is fully seated, it forms a positive lock that will not loosen, even under extreme vibration. This dam-like action also creates a positive seal to be used to prevent leakage.
High Temp Resistance
ND Patch Hi-Temp maintains its torque performance through temperatures as low as -70°F (-56°C) and as high as +500°F (+260°C). ND Patch Hi-Temp is the highest temp nylon available.
Low Application Temp
During the application process, fasteners being coated with ND Hi-Temp Patch are only required to be heated to 250°F. Unlike many other high temp nylon materials, this reduces damage to the fastener and its finish.
Fasteners coated with ND Patch Hi-Temp can be re-used repeatedly without damage to the threads. ND Patch Hi-Temp is particularly resistant to deformation, which makes it ideal for repeated use.
Retains Full Strength
ND Patch Hi-Temp process involves no drilling or milling, so there is no loss of the fastener's strength or hardness and no troublesome burrs or chips.
ND Patch Hi-Temp will not dry, shrink, or otherwise be effected when exposed to commercial solvents, alcohol, gasoline, oil, caustic soda, jet fuel, etc.
An increased sealing ability can be obtained by completely filling the thread helix 360° with nylon.
Saves Time: Fasteners coated with ND Patch Hi-Temp can be automatically fed through standard feeding devices.
Saves Money:ND Patch Hi-Temp saves money by pins, or castellated nuts. ND Patch Hi-Temp is also less expensive than applying bottled thread locking compounds at the point of assembly.
Quality Control: Pre-Applied parts are coated to specification, insuring consistent performance unlike bottled products. ND Patch application area and torque can be customized to meet specific needs.
In-Line Inspection: During the ND Patch Hi-Temp process, camera systems are used to verify parts are coated exactly to customer’s specifications. This often removes a secondary sorting operation at the end customer.
Fast Turn-Around: The ND Patch Hi-Temp process produces a complete, non-chemically reactive, ready to use product. ND Patch Hi-Temp performs immediately upon assembly. There is no cure time required.