Repairing Black/Ebony Polyester
Watch the video
Polyester Repair for Ebony for a tutorial on the basics of ebony repair.
Polyester Lacquer comes in 3 sizes; 100ml, Pint and Quart. Polyester
Hardener is sold separately and comes in 2 sizes; 10gr (for 100ml) and
50gr (for pint and quart). For case and surface damage, we recommend using
Rex Lith gel filler. Rex Lith kits are complete and come with 120gr
Gel, 10gr Hardener, Blending Spatula and Clear Plastic Fill Sheet.
Intensive Black is a concentrated dye made especially for high gloss
polyester ebony finishes, which matches most non-Asian pianos. For Asian
pianos, the color can be adjusted by adding
Asian Black pigment. We also carry
Black w/Brown Hue,
Black w/Green Hue, and
Black w/Blue Hue pigments for pianos & furniture that require these
respective tints. All black Pigments must be mixed with Intensive Black
Dye when being added to polyester lacquer.
Repair: One of the most frustrating things that can happen during
a finish repair is sanding through a thin finish. In the past, it required
building up the finish with repair material, allowing it to cure, and going
through the whole process again – risking another sand-through.
Acrylic Ebony to the rescue! We had this topcoat formulated as a much simpler
solution. It is shipped with reducer, hardener, and complete instructions.
Contact Allied Piano for more information and ordering at 215-491-3045 -or-
Here are the critical points:
The surface must be level and sanded prior to application. An air-brush
will give you such a good result you may not need to sand and polish, as
it dries to high gloss. Otherwise, apply with whatever tools you have available.
Acrylic is not as hard as polyester, so less aggressive treatment will be
needed. I begin with 1000 wet/dry paper, use one paste compound, then polish.
If sanding will be required, spray or brush on three coats, and allow 2-3
days of curing time to allow for shrinkage.
A bonus use of this product is for filling in and hiding small imperfections
in a repair, saving you the time and effort of opening the site back up
and re-filling. These little spots can normally be completed all in one