Generally my instruments are french polished by hand to produce the thinest/most flexible layer of surface protection. I prefer the use of platinum blonde shellac which is the clearest in colour of all shellac that is available and thus only enhances (not alters) the natural colouring of the chosen timbers.
Occasionally Clients may request a more durable finish to the back/sides/neck of the instrument. This is achieved by a very thin spray coat of lacquer to these areas. This will not limit the acoustic properties of the instrument, provided the front is always french polished.
At all stages of the guitar build I utilise spectrogram readings and load testing measurements to identify if the instrument is achieving it’s target frequency responses. This data is used to make fine adjustments to the top/back thicknesses and the height and shape of the bracing.
Once the polished instrument has been allowed to ‘settle’ and fully harden, final adjustments are made to ensure the instrument is fine-tuned and produces a balanced, even tone and strong projection.
Each instrument is unique and always incorporate details that enhances and reinforces its individuality.