I have never had an issue with CLP even after having drawn it up and leaving it in an applicator bottle for an extended amount of time. Sometimes in the summer the temperature in my car can go as high as 145 degrees on the dash and you could keep food warm. Recently I had one of those battery packs used to jump start cars swell up out of the case from the heat. I will be putting the new one in an insulated bag under the seat.
Perhaps the centers you used it on had been treated previously or the bushings where contaminated. If the center pins have verdigris CLP will not help very much nor will it work well if the plating on the pins is flaking/shedding ala Young Chang , Samick. Not sure about a glue/clp issue.
My problem with CLP is always have enough of it when I need it or finding it in the van. To solve the lost CLP problem I know have an ORANGE ammo box with a flammable sticker that houses glues, CLP, epoxies, applicators. i can find it at a glance as well as make sure the stuff is not sitting in the sun all day.
------------------------------
James Kelly
Pawleys Island SC
843-325-4357
------------------------------
Original Message:
Sent: 08-11-2019 20:41
From: Sheffey Gregory
Subject: Protek CLP "going bad"
Has anyone had experience with CLP no longer being effective? After applying to some hammer flanges recently it did not make any difference in gram resistance or number of swings. Possibly due to being left in a hot car too often?
And a few weeks ago, in repinning, on a few flanges it seemed to make things worse instead of better. Our hypothesis on this is that it reacted with the glue the previous tech used in rebushing to "gum up the works".. fortunately this was a temporary sluggishness, as soon as things evaporated off the flange returned to normal. But I've never had it interact with glue before..
Experiences ? Ideas? references? I tried a short search within Pianotech, but that was futile.
Thanks,
------------------------------
Sheffey Gregory, RPT
------------------------------