Washing Natural Bristle Brushes – Viewer Question

June 22, 2009 by thewoodwhisperer
Filed under: Viewer Questions 

This Viewer Question comes from Tom who writes:

I just read Bob Flexner’s book :Understanding Wood finishing- the completely revised and updated version. I was hoping you could help…. On page 27 regarding cleaning brushes he states that the last step in cleaning ANY brush is to wash in soap and water. It is my understanding that natural bristle brushes do not hold up to water. So how can I use water to clean it??? Is it that a short exposure time is ok?? Please help.

Many of you know that my preferred way of applying finish is with the wiping method. So my experience with brushes is pretty limited. Now just like last week, I went to the source for a better explanation. Here’s a quick response from Bob Flexner himself:

“All types of bristles can be washed in water. Natural bristles don’t hold their spring for very long in water, so they don’t work well with water-based products. But there’s no problem washing these brushes, and you really have to if you’re going to store the brush because it’s the only way to get all the residue finish out of the brush. Thinners only thin the residue. They don’t remove it.” —Bob Flexner

You can support Bob and The Wood Whisperer at the same time by ordering Bob’s book using the link to the left.

Comments

2 Responses to “Washing Natural Bristle Brushes – Viewer Question”
  1. Ben H says:

    I’ve been told that lemon juice (heated on the stove) will remove dried latex paint on a brush. Maybe someone can confirm this?

  2. Frank says:

    This is just an excellent book on finishing. I highly recommend it. Frank

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