flatting agent for oil based paunt

[Charlie B]

Jim, Talc is still for sale at a lot of places. Walmart as well as Amazon has sellers and I also found this
https://www.amazon.com/Fasco-Epoxies-Tal...B08NTR7B1D.   When I was training to operate hydroelectric plants in New York one of the plants was in a talc mill.  

Charlie