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THREAD  REPAIR                                                                                                                                THREAD  SEALING
  STRIPPED THREAD REPAIR                                                                                       STANDARD FITTINGS  PIPES, HYDRAULIC, OR AIR
                                                                                                                               PST® Band                       PST® Band
                                                       Cleaned Bolt
                  Release Agent
                                                                            Cover
                                                        Threadlocker        Plate
                 Stripped Threads                 Release Agent
                                                                                                          1.  Clean parts of contamination. If necessary, spray Loctite® 7649TM Primer NTM
                                                                                                              onto threaded parts (male and female). Allow to dry.
                                                  FORM-A-THREAD®
                   FORM-A-THREAD®                                                                             Note:  Primer is not required for brass parts.
                   1/
                   2 Fill Only
                                                                                                          2.  Apply a band of Loctite® PST® Thread Sealant to male threads starting one
                                                                             New                              to two threads from end of pipe.
                 Tape                           Tape
                                                                             Threads
                                                                                                          3.  Assemble parts snugly. Do not overtighten.
       Step 1                         Step 2                          Step 3                              4.  If initial pressure exceeds 1000 psi*, wait 30 minutes before pressurizing.
                                                                                                              Note: · For stainless steel components, use Loctite® 567TM PST® Thread Sealant.
 STANDARD THREAD REPAIR                                                                                              · For general purpose thread sealing, use Loctite® 565TM PST®
                                                                                                                       Thread Sealant or Loctite® QuickStixTM 561TM PST® Pipe Sealant.
 1.   Follow instructions on Loctite® FORM-A-THREAD® package.
                                                                                                                     · For fine filtration systems requiring zero contamination, use
 2.   If cover plate is used for bolt alignment:
                                                                                                                       Loctite® 545TM Thread Sealant for hydraulic/pneumatic fittings.
      (a) Apply release agent to mating faces around repair area.
                                                                                                                     · For easier disassembly or large diameter fittings, use Loctite®
      (b) Use "waxed" paper or similar film between faces.                                                             564TM Thread Sealant.
 3.   A "jiggling/twisting" motion when initially inserting bolt improves                                            · If sealing chemicals or strong acids/bases, refer to Fluid
      thread conformation.                                                                                             Compatibility Chart (LT-836).
      Note:  NOT intended for engine stud repair.                                                                    · Do not use on oxygen or strong oxidizers (chlorine).
                                                                                                                     · For PVC or ABS pipe, use Loctite® No More LeaksTM.
 SMALL HOLE/FINE THREAD REPAIR                                                                                                             *Depending on conditions
 OPTION 1.     Drill out damaged hole to oversize, then follow STANDARD
                                                                                                                                                                      PIPE UNIONS
               THREAD REPAIR.
                                                                                                                                     PST® Band          PST® Band    PST® Band
 OPTION 2.     Apply Loctite® FORM-A-THREAD® to screw and insert into
               damage hole. Clamp in place while product cures.
 STUD INSTALLATION -- PERMANENT (LIGHT DUTY)
 1.   Use stud or cut "all thread" to desired length.
 2.   Do NOT apply release agent to stud.                                                                                                       ®
                                                                                                                                             PST Coating (May be used for new or damaged seat)
 3.   Proceed as with STANDARD THREAD REPAIR.                                                             1.  Disassemble and, if necessary, spray all components with Loctite®
 4.   Allow 30 minutes to cure.                                                                               7649TM Primer NTM. Allow to dry.
 5.   Assemble as required.                                                                               2.  Apply a thin coating of Loctite® PST® Thread Sealant to union face.
                                                                                                          3.  Apply a band of Loctite® PST® Thread Sealant to male threads.
                                                                                                          4.  Assemble parts snugly.
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