ND PATCH from ND Industries

The ND Patch coating process produces a completely  dry product that is fused to the fastener and is ready to use right out of the box. ND Patch performs immediately upon assembly with no curing time required.
How ND Patch Works
When assembled with a  mating part the resilient ND Patch is compressed. The compressed engineered plastic (normally Nylon) Patch provides locking action in the thread instead of at the bearing surface due to its vibration dampening characteristics. In general, the resilience of ND Patch holds the fastener in place without adhesives or thread distortion. Due to its resilience, Patch can be repeatedly adjusted and reused. 
ND Patch and ND 360° Ring Patch is normally  positioned one to three threads back from the end of the fastener to assure ease of starting. The normal coating length of the Patch is four to six threads. Special Patch location and coating length can be specified for specific applications. 
As with all of ND “PreApplied” products, ND Industries can apply Patch to your fasteners at any one of our regional service centers, or they can supply you with fasteners already coated with ND Patch.
Improved Sealing: ND 360° Ring Patch provides excellent locking performance as well as increased sealing ability by completely filling the thread helix with an elastic 360° nylon dam. 
Retains Full Strength: ND Patch process involves no drilling or milling, so there is no loss of the fastener’s strength or hardness and no troublesome burrs or chips. 
Saves Money: Use of ND Patch eliminates the need for  costly lock washers, cotter pins, or castellated nuts. You get a close fit without the costs involved in obtaining close tolerances. Moreover, ND Patch is less expensive than applying bottled thread locking compounds at the point of assembly.
Resists Heat & Cold: ND Patch meets and exceeds IFI Specifications 124 & 524 as well as Military specification MIL-DTL-18240F, Type P, for temperatures from -70°F (-57°C) up to +250°F (+121°C). 
Chemical Resistant: ND Patch will not dry, shrink, or lose resiliency when exposed to commercial solvents, alcohol, gasoline, oil, caustic soda, jet fuel, etc.
Reusable: Fasteners coated with ND Patch can be reused repeatedly without damage to threads. ND Patch is particularly resistant to deformation, which makes it ideal for repeated use. 
Saves Effort: ND Patch greatly reduces the need for retightening. 
Saves Time: Fasteners coated with ND Patch can be automatically fed through standard feeding devices.
ND Patch meets or exceeds the performance requirements of the following specifications and/or standards: 
MILITARY: U.S. Military: MIL-N-25027, MIL-N-25027  
• MIL-F-18240E, MIL-DTL-18240F
AUTOMOTIVE: Chrysler: PF-5144, PF-5461, PF-6157, PF-6158• Ford: ES-382101-S100, ES-378813-S100, 
•ES-N800688-S100, WA970, ES-21002-S100 General Motors: GM 6189P•
OEM: Detroit Diesel: 9S240  •Eaton: 205372  •Meritor (Rockwell): Q-70  •New Process Gear: PS-61 

Date : 15.03.2019