Is this stuff the same as the Pica stuff that has been unobtainable for about a decade?
https://www.towerhobbies.com/cgi-bin/wti0001p?&I=LXJLKL&P=0&fbclid=IwAR0HeW_OQ-zgC-8iy_PZFT9eEjVt7fvMIfoYxWodQC25FD_DtHW5MFaJDxg
Thanks
I have never used it, but the reviews on the Tower site, even the positive reviews, talk about how it remains "flexible" and how strong it is. Both of those are opposed to the concept of Pica (which I think was the same as the white Luthier's glue that is now also unobtainable). Pica and the white Luthier's glue were weaker than Titebond or other aliphatics and dried very hard and brittle - which is what made it so easy to sand. The rigidity is what the instrument people liked about it, soft/flexible glue added damping to the completed instrument and changed the sound. The problem with sanding Titebond or other similar glue is that it is flexible, and flexes away from the sandpaper and is pretty "tough", which is great for the bond strength, but not to great for finishing. It's much less of an issue when you are gluing what it was intended for - hardwood.
The same people who had the old white instrument glue have a new yellow aliphatic that is alleged to be different from Titebond and very hard. I am a bit skeptical because I am 100% certain that they don't own a chemical factory, and even a minimum order of something special would supply people making violins for the next 10,000 years, but I am going to get some and try it.
Brett