Domestic Japanese Yamaha Soundboard being resprayed for the Australian Climate

This was done in the Music room during the holidays. I put a drop sheet on the floor and after tipping the piano forward and resting it on foam blocks, I masked off the back-posts.
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As you can see the sound-board was not 'glossy'. In fact it was quite dry -- all the Japanese domestic models are like this.
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Here you see the soundboard after spraying. I used two kinds of spray gun here. A low-pressure high-volume gun with NO thinners to cover the spruce as quickly as possible. This way the material dries quickly and thickly and doesn't seep into the timber too far. Then I applied the lacquer with a brush under the posts. Finally I used thinned lacquer with an traditional spray gun under the posts, to make sure that the lacquer was evenly spread out.
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This piano was purchased for a school with a strong music department. Typically funding is never adequate, so a 'domestic' model was obtained for about a fifth the cost of a new unit. The risk with domestic models is that the soundboard is not sufficiently sealed, and the tuning pins are loose in the pinblock due to the fact that the diametre at which the holes are drilled in the factory is larger, as the Japanese climate is more humid than the Australian climate. A piano with a tight pin-block in Japan feels looser in Australia.
 

   

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