Cellulose Thinner
Product information "Cellulose Thinner"
For the thinning of all König NC- and acrylic lacquers, for the glazing adjustment of Colour Touch-Up, and to dissolve the paint chips in the Touch-Up Paint Box. Can be used as brush cleaner.
https://www.heinrich-koenig.de/media/34/8a/4f/1721203772/TDS_710000_Cellulose_Thinner_2021-43.pdf
https://www.heinrich-koenig.de/media/9e/05/77/1721203731/SDB_710000_Cellulose_Thinner_V2.4_EN.pdf