Fil
505 posts
Oct 22, 2025
6:47 AM
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----------I acquired a harp recently that seems quite airy/leaky. I’ve never done much flat sanding, but have started on this one. Couple of questions: on the draw plate, do I need to sand to the point that the entire plate is shiny? What about the blow plate? I’m using 800 wet/dry sand paper. Is that aggressive enough or too aggressive?
Thanks
Phil Pennington
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florida-trader
1609 posts
Oct 22, 2025
7:53 AM
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You should deinitely flat sand until the entire plate is shiny. Wet sanding is the way to go. 800 grit is not aggssive enough. It will turn a job which should take no more than a minute into a 5 minute workout. Use 320 or 400 grit paper and then ifyou want to make the plates even smother, move to the 800 that you are using.
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Tom Halchak
Blue Moon Harmonicas
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Fil
506 posts
Oct 23, 2025
3:34 AM
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Tom, thanks very much.
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Phil Pennington
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