In article , nospam says...

I have a situation that I need help with. I have a big bunch (3k) of
brushes that need better tuft retention for a special application. The
brushes are 7" long x 3-1/2" wide and have 50 holes/tufts in them. Each
hole is 1/2" deep x 9/32" dia. and each tuft is 3 flat wires bent 180 deg,
and stapled into the hole with a 18 ga., 1/4" crown x 1/2" leg staple. I am
thinking of injecting glue of some kind into the hole with the wire. These
brushes are already made. If I can inject glue or epoxy into the holes, the
material will have to be able to withstand the brushing action and not
crumble or pop out. I wonder if carpenter's glue would work. I'm looking
for leads for some type of powered dispenser too. My budget needs to be
under a buck apiece including labor.

Yikes. Sounds like a manual operation no matter what you do,
injecting into holes like that. I would first think of hot
melt glue, but the labor will be way over a dollar I would
think.

Jim


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