One of the first things I do when done using a brush is to wrap it in newspaper and set it in a quart container of paint thinner, to soak. Ensure you fill the container to cover the brush ferrules and let the thinner do its job.
After a day of soaking, I set up two more Quart buckets of paint thinner and start the manual cleaning process.
I unwrap the brush and re-dip it into the container it was soaking in. I then place the brush down on a rag [or end of a trash barrel] and using the wire brush, stroke the China bristles from the ferrule to the brush tips. I repeat this dip and wire brush process 2-3 times in each Quart bucket. As I progress the brush gets continually cleaner and cleaner, and I finish by spinning the brush. After spinning the brush, I store the brush back in the cardboard wrapping that I bought it in or wrap it in the newspaper, securing it in place with a rubber band.
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