Park Tool AP-1 Adhesive Primer. Adhesive Primer promotes maximum performance of Park's TLR-1 TLR-2 and RC-1 compound.Prepares surface and accelerates curing
Must be used on all fasteners and carbon fiber surfaces prior to using TLR-1 TLR-2 threadlocker or RC-1 compound. Failure to do so could result in permanently bonded components