In yesterday’s post about Bench Dog silicone glue brushes, a couple of readers mentioned how they use acid brushes. I remember a time when I had no ideas what these were, and so a short intro post was definitely in order.
An acid brush is a small disposable multi-purpose brush. I believe they got their name from the plumbing industry, where they were used to apply acid flux for pipe soldering applications. Please correct me if I’m wrong.
Acid brushes are small, they’re plentiful, and they’re cheap. You can sometimes buy them individually, but more often you’ll find them in packages of 5, 12, 100, and so forth.
They often have small bundles of horsehair or nylon bristles, and metal tubular handles.
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You can use an acid brush to apply glue, or other liquids and [certain] chemicals, and for quick small-area cleaning or wiping applications. They sometimes leave a bristle or two behind – just keep that in mind.
You can buy these in multiple sizes and lengths. A ballpark estimate is $0.35 each. Although disposable, you can sometimes get multiple uses out of each brush, depending on what you’re using them for.
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If you’ve used acid brushes or similar, what type of work do you put them through?
And where’s a good place to buy these? I linked to Amazon because they have a lot of options, but I don’t remember where I bought mine from. Maybe from an industrial supplier? I once bought a pack of 5, and am currently still working through a bulk pack from a few years ago.