Every synthetic paint brush develops a certain degree of undetectable paint build-up in, around and below the ferrule, the heel and the filaments. Dried paint near the ferrule is the number one reason why paint brushes lose their shape and become difficult to cut with. Dried undetectable paint on the filaments will reduce the responsiveness of the brush too.
Paint build-up typically occurs when the brush is laid on its side to dry. Its best to hang brushes after a cleaning to allow any remaining dirty water to drain from the ferrule. Using water alone does not provide the best cleaning for a brush with today’s acrylic paints, some may require lacquer thinner. Here are some tips for keeping the filaments in their best shape. Always pre-wet your brushes with water before painting, this will help with clean up later.
CLEANING FRESH PAINT
- Starting with a first rinse with water, release as much paint as you can and then change the water.
- Second Rinse. Use a paint strainer rather than a wire brush on synthetic brushes to remove dried paint on the filaments and continue to rinse until it appears clean.
- Place brush in a mixture of water and Krud Kutter. A 60w/40kk mix is sufficient for regular cleaning immediately after painting. Be sure to rinse thoroughly or your brush may harden a bit when its dry and you’ll need to rinse again.
- Hang brush to dry
CLEANING A DRY BRUSH
- We took a brush we thought was clean using water alone and placed it in a 50/50 mixture of water and Krud Kutter and worked the brush back n forth and let sit for a few minutes. The amount of paint removed from the brush was amazing seen below after it settled for a few hours.