I have used protek on high use pianos of various qualities and general condition for 6 years going now. Some of these intstruments get 6-8 hours use daily. The only dissapointment I've ever had with Protek is that it isnt the magic cure all for sluggish centerpin bushings we all would love it too be. But then nothing else is either. I have never run into squeaks from its use. Teflon is a good dry lubricant to be sure. I always make sure and work a good deal into centerpin bushings when I repin, but otherwise find it wears off rather quickly. Great for knuckles.. but you have to repeat from time to time. Cheers RicB >>I have found Protek on key bushings to start squeaking after much playing, particularly on a piano with PianoDisc installed. I use a pipe cleaner >>dipped in Teflon to swab bushings and balance rail hole with good results. >>Someone else I know swears by plain ole mineral oil wiped on the pins. >> >>Dean >> >>Dean May cell 812.239.3359 >>PianoRebuilders.com 812.235.5272 >>Terre Haute IN 47802 >> >> >> >>_______________________________________________ >>pianotech list info: https://www.moypiano.com/resources/#archives >> >> > >_______________________________________________ >pianotech list info: https://www.moypiano.com/resources/#archives > > >
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