I am Using woodglue and water for help with bed adhesion. 1/5 1 part glue 5 water.
works really well for me, but the water evaporates quick and the mix getting to thick,
so i came up with this , its a rubberband superglued on the egde to seal tight.
use what ever glue thats pla safe to seal the brush, then my problem was solved thanks to thinkercad. i still wish for a pro edition or alike just with more of everything(Tinkercad)
This thing was made with Tinkercad. Edit it online https://www.tinkercad.com/things/fUKBtr5MO2v