John Koelle |
P i a n o R e f
i n i s h i n g |
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| Hand rubbing (wet
sanding), is the final stage of the piano's cosmetic
journey. This is the most critical period of the
refinishing job, because any mistakes--for example,
sanding through the lacquer to primer, or worse, bare
wood--could take several days or weeks to remedy. In a mechanical sense, rubbing is very similar to that of standard sanding or scuffing. Like scuffing, the objective is to remove all pores from the piano's surface. The primary difference however, is that rubbing requires the use of a much higher grade of sandpaper, typically 400-grit, as well as water and a professional wool-wax to act as lubricants. Once the sanding has been completed, each piece is rubbed out with wet steel wool to give the finish a deep, satin sheen.
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