Washout Brush construction

Hi, I am asking a company who makes industrial brush products to make one for washing Photo-polymer plates.

I would like to know the length of the hair sticking out from brush base.

Also I am making an washout unit with a simple motor device.
So I need a brush for the machine as well as a handy size brush.

Can anybodoy give me Washout Brush construction?

One of Brush makers sent me sample brush materials.
See the attatched image.

0.1mm and 0.2mm Nylon

image: IMG_9420.JPG


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Nylon absorbs water. I don’t think it would be a good choice for a plate washout brush which is subjected to water a large part of the time. If I were you, I think I would try polyester.

Thanks Geoffrey ,

I wiil ask the brush maker if they have polyester.

I am getting a polyester sample material from a brush company.

What thickness and length of brush should I go for?

With the size of a brush base, I am thinking like 148mm×210mm or slightly less like just enough to hold by hand.

Hopefully, someone with a washout unit and a micrometer caliper, will measure the length and thickness of their brush bristles for you. I don’t have a washout unit, unfortunately. Regards, Geoff

Hi, I emailed Printing Museum about the length of their brush.
They measured the the length of brush which is 20mm.

I got polyester sample brush materials:

0.08mm and 0.2

image: IMG_9497.JPG


sepia, why don’t you buy one for $35 + postage from
photopolymerplates.com. why reinvent the wheel?
best james

james bourland, Thank you for the info.
It could be an good option.

I thought I was going to buy one from Boxcar.
But Shipping and handling is $93 to my location.
$123.00 Total for the brush is too much.

Then I wonder If I order one from a local company who makes brush, I would be paying less than $123.00.

You can also check out Joop Stoop in Paris, France. They sell those brushes as well.

image: Screen Shot 2014-12-17 at 18.10.20.png

Screen Shot 2014-12-17 at 18.10.20.png

You can definitely get something like that in Japan, because they make photopolymer processing machines.

thomas gravemaker
Thank you for the info.

They sell those hand brush for photopolymer plates. Surprisingly, their price is same as USD120-130.

I am thinking like a 210mm x 210mm brush plate for my Wash-out-unit: http://www.briarpress.org/41021

Any suggestions?

image: wash-o-brush.jpg