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  • Posted in: Pianotech

    And... Old lacquer is not the same as new lacquer. Over time key chemical components that add some flexibility evaporate, and the lacquer gets harder and non-pliable. 30 year old SS hammers are not ...

  • Posted in: Pianotech

    There are three levels/stages of the application of chemical stiffeners. First, the dose is light and small enough that individual fibers themselves are coated, slowing down the felt's elastic reaction ...

  • Posted in: Pianotech

    With over lacquered hammers, inserting a needle just makes a hole. The purpose of needling, in my opinion (and that of many others) is to spread the fibers in the shoulder apart. The full mechanism of ...

Executive Outlook
David Stonemason

Spring Cleaning: RFAs


By David Stoneman, RPT

PTG President

It’s April, and as we enter the first full month of spring

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