Brushes are an artist’s primary “hands.” Without proper care, even the most expensive Kolinsky sable can turn into a useless broom within a few weeks.
Here is a comprehensive guide on how to extend the life of your tools so they serve you for years, rather than just until the end of your current canvas.
The Golden Rule: Don’t Let Paint Dry
The biggest mistake is leaving a brush exposed to air for “just a minute.” Paint gets trapped in the ferrule (the metal part holding the bristles). If it hardens there, the bristles will begin to splay, and the brush will lose its shape forever.

• In the Process: If you aren’t using a brush right now, keep it in water (for watercolor/acrylic) or in a thinner (for oil).
• Important: Never leave a brush resting on its bristles in a jar! The weight of the handle will bend and permanentely deform the hairs. Use special spiral holders instead.
  
  Cleaning Specifics by Paint Type
  
  The cleaning method depends directly on the medium you are using:
  Paint Type What to Use Special Notes
  Watercolor / Gouache Warm water and mild soap. These are the most delicate brushes. The key is not to rub the bristles too hard.
  Acrylic Water + specialized cleaning soap. Critical: Acrylic turns into plastic. Once it dries, saving the brush is nearly impossible.
  Oil Odorless mineral spirits, followed by bar soap. Wipe the brush with a rag first to remove excess oil, and only then rinse it in the thinner.
  The Proper Brush “Bath”
  Simply holding a brush under the tap isn’t enough. Here is how the pros do it: Lathering: Gently rub the brush against your palm or a specialized silicone cleaning mat. Motion: Use only circular or “painting” strokes. Don’t press so hard that the bristles flare out like a flower. Base Control: Ensure no pigment remains near the metal ferrule. This is where “poison” accumulates that kills the brush. Conditioning: Once a month, you can use regular hair conditioner (for natural hair brushes) to keep them elastic.
  Drying and Storage
  Many make the fatal error of placing wet brushes in a jar with the bristles facing up. Why it’s bad: Water seeps into the ferrule, dissolving the glue and rotting the wooden handle. This leads to shedding and cracked handles. The right way: 1. Blot the bristles with a paper towel.
  1. Use your fingers to reshape the tip to its original form.Dry them horizontally on the edge of a table or tilted downward.Store them vertically (bristles up) only when they are completely dry.
     Protection from External ThreatsMoths: Natural hair (squirrel, sable) is a delicacy for moths. If storing brushes for a long time, place a lavender sachet in the case.Transportation: Use hard cases or bamboo rolling mats. They allow the brushes to “breathe” while protecting the tips from bending.
  Pro Tip: If a synthetic brush tip starts to curl, try dipping it in very hot (near boiling) water for 10-15 seconds, then immediately reshape it. This often brings the bristles back into alignment.