…and an acrylic coating inside?
You need to determine, identify where the water is getting in and then repair/waterproof it, NOT apply a coating on inside walls
https://www.youtube.com/watch?v=H953h5hIEWA)
So since you or anyone else cleans up most of the mold the cause/problem(s) is fixed?
Highly, highly likely that basement has exterior cracks, cracked parging in block walls, maybe some openings/gaps around-under some basement windows etc so applying anything on the inside walls doesn’t repair/waterproof any of those.
Example, stained block walls, efflorescence etc
https://www.youtube.com/watch?v=M8gOBD4aq6Q) Drylok etc
Outside… the problems https://www.youtube.com/watch?v=E_ALP7yuuBA)
Applying junk on the inside doesn’t stop water from entering anything like this
This lady raised https://www.youtube.com/watch?v=HALcgt9ho2M)
The problems, where water was entering… were exterior cracks, cracked parging in foundation wall. Applying some acrylic coating etc doesn’t STOP further water from getting in!