Got it. I don't know the age of your piano, but some years ago when I worked for the Samick dealer, I used to use the Intensive Black. I don't know about the Asian Black. You have to be a little careful not to use too much color or the polyester won't catalyze properly. I always measure the resin very carefully and add just enough pigment to make the mixture opaque. Usually I use those small plastic medicine cups and maybe 1/4" or less in the bottom of resin. Then add 3 drops of Intensive Black, and mix it up. I tip the cup and watch the colored resin as it drains to see how opaque it has become. I use maybe 3mm diameter ball of hardener. If you have high humidity, it will slow down the hardening process. You can use more hardener in that case. In small quantities, it's easy to overdo it and it will smoke. Some of the colors are tints (no pigment), so that may affect how much opacity you get. It may look black, but unless you have enough pigment you'll get a different result. On Asian pianos like Yamaha they have a Yamaha black, but I usually have to be careful not to use too much or the liquid will prevent it from hardening properly. I use a couple of drops of Intensive Black along with it, even though it has a slightly bluish tint (Yamaha is definitely gray). Most of the Chinese black poly pianos are also a gray color, so I use that on them also.
That's all I know. Good luck.
Paul
Original Message------
Thanks, Paul. I did contact Ruth, but since I am working on this over the weekend, I was hoping to hear back from other experienced techs in case I didn't hear back from her until Monday.
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Peter Stevenson RPT
P.S. Piano Service
Prince George BC
250-562-5358
ps@pspianoservice.com
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