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Varnishing

There are so many different ways of finishing musical instruments that I am not going to show much here.  There are all sorts of varnishes and lacquer finishes, plus various oil finishes, and of course good old shellac french polished.  There are also different ways of filling the pores, and different methods of application.  Books have been written on the subject, and there is much discussion on Internet Luthier forums about finishing.  All work, and all have strengths and weaknesses.  A french polished finish I believe is the most beautiful finish, is easy to repair, but it is not very resistant to sweat damage.   I use an alkyd oil varnish manufactured by Target Coatings and french polish on top of that.  I like it because it is an exceptionally flexible finish that I think sounds great on my mandolins.  Other Luthiers get good results with different products.  Finishing is something that takes a lot of time to get a great finish, sometimes even as long as it takes to get the instrument to the stage of ready to be finished, so patience is required.   

The varnish I use can be sprayed or brushed on.  I like to brush it on, but it is a tricky thing to get right, and some brushes work better than others.  Practice makes perfect.

 

A great deal of time is spent sanding with fine sandpaper.  I buy sandpaper by the packet.

 

 

Here I am french polishing a mandolin back.  This is a different mandolin from the mandolin shown in most of the pictures.