Sorry for crossposting - but:

Is it possible to keyframe a flip's viscosity? (Or in any way change the value during a simulation without setting a by age or so at the beginning.)?

I can alt click and ad keys, that's no problem. But there is no reaction whatsoever in the fluids behaviour.

I think the Best way is to using viscosity point attribute .
Just add a point attribute by viscosity name , then you can change it's value over time inside of Geometry Network , Not Dynamic Network :wink:

Please check this Topic , I made a simple project about changing Viscosity over time in this topic :

https://www.sidefx.com/index.php?option=com_forum&Itemid=172&page=viewtopic&p=157598#157598 [sidefx.com]

Thanks a lot!
For some reason I didn't find that in my search.