Read this in FSM. To remove old paint and rejuvenate you brushes, wash them with shampoo.

I use a product called Brush Restore, found it at art supply store. Works great, gets any old dry paint.

I have heard of brush restorer, but shampoo is cheaper.

Have used shampoo in the past, does not work nearly as good as Brush Restore.....

Winsor and Newton makes the same thing their recommendation it to use a soap ( Master's brush cleaner and preserver ) afterwards . The shampoo works don't , I don't dispute that but does not get any of the paint that has dried inside the ferrule, it's effective if you immediately wash the brush right after using it. Word of advice some of the acrylic paint cleaners will attack plastic, melts the heck out of them, I learned that the hard way when I spilled some on a model I was building.

I doing a quick dip, in Acetone. Followed by a rinse, in paint thinner. And, then, a wash in water. This is for enamels and lacquers. I also oil my bristles. For acrylic, I have another process. First, a rinse in glass cleaner. This is followed by another rinse, in ipa and finised with water. It keeps my brushes very clean. I was hoping to rejuvenate some of my older brushes. But, I digress.

This was meant to be a budget brush cleaning thread.