Keep the ferrule clean
Do not immerse the brush in paint up to the ferrule. Wet paint is hard to remove from this area and, if it dries, even more difficult.
Clean excess paint
Remove all excess paint with a soft rag or paper towel.
Don't over soak
Never leave a brush soaking in water or mineral spirits for an extended period of time.
Don't rest your brush on its head
Never let your brush rest on its head. There are many accessories available that will suspend your brush.
Clean the brush properly
Watercolor and acrylic paint should be cleaned with mild soap and water. Oil paint should be first cleaned with mineral spirits and then with soap and water. If you wish to avoid mineral spirits you can use Baby Oil or Murphy’s Oil Soap.
Store brushes properly
After cleaning, remove excess water, reshape the hairs into place with you fingers, and stand the brush upright on the handle to dry.