Hi Rob, Our adjoining, though separately managed retail piano store is owned by a car fancier (at least until April), often who's had his car finisher work on pianos using the same material. Both stripped and touched up pianos have suffered similarly as the finish is formulated for metal rather than wood - its strength actually works against it where large cracks develop as the wood changes dimensions. On top of existing finish, the results are more apparent. Several customers have requested that cracks that have developed in their homes be fixed under guarantee, adding hassle and extra work to an otherwise simpler finishing technique. The stuff isn't as awful as polyester (which they've used, too) but bad enough for us to ban its application from the building. I dislike the look of it, anyhow, preferring the edible stuff of shellac and old-school varnish but that's beside the point: in the long run, I think automotive finishes aren't worth putting on pianos. Clark
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