The Park Tool RC-1 Press Fit Retaining Compound, click to enlarge

Item # RC-1

/ Tools / Lubricants & Compounds

Press Fit Retaining Compound

Park Tool RC-1 is used to prepare non-threaded parts such as bottom bracket cups, sealed bearings, and other press fit components. RC-1 expands and hardens as it cures, filling gaps and ensuring secure installation.

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RC-1 Features

  • 10 mL (0.34 fl. oz.) bottle
  • Competes with Loctite® 680™
  • Not recommended for threaded applications

NOTICE: When retaining compound or threadlocker is used on carbon fiber frames or components, adhesive primer such as Park Tool AP-1 must first be applied to all component, fastener and frame surfaces. Failure to do so could result in permanently bonded parts.

CAUTION: Some painted surfaces can be sensitive to threadlockers, retaining compounds and primers. Test first on an inconspicuous area to see if it causes a stain or discoloration. Clean off any excess from painted surfaces immediately.


Park Tool Assembly Compounds - TLR-1, TLR-2, RC-1, AP-1