View Full Version : Re: Retroreflective paint (fwd)

Jim Walton
09-20-1995, 03:45 AM
---------- Forwarded message ----------
Date: Wed, 20 Sep 1995 09:32:39 -0700 (PDT)
From: Jim Walton
To: jobbagy@mmt.bme.hu
Subject: Re: Retroreflective paint


I tried sending this to your return address--it bounced "Host unknown".
I'm hoping it will reach you via the list. There are probably others
with similar interests ...

Just a quick word of advice. I don't think you'll have much success with
retroreflective paint. Basically, the paint contains small glass beads
which provide the retroreflective property. When used on large surfaces,
and when applied in a uniform fashion, the paint will provide a good
retroreflective surface. However, when you try to do the job with a
small brush the beads tend to clump together, and the adhesive/paint
tends to cover the beads. The result is generally a very non-uniform,
non retroreflective spot--at best. If you do manage to create a surface,
the animals will probably find a way to scratch off the small glass beads.

You can buy the paints from 3M, but if you can talk sweetly, try your
local highway Department!! You may find that the highway department
keeps the paint and beads as separate entities, the latter being added
after the paint has been applied. (They do this with a spray gun.)

If you still want to try this, and you can't get the material locally,
send me a note.


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On Wed, 20 Sep 1995 jobbagy@KUKA.MMT.BME.HU wrote:

> Dear Netters,
> We use the PRIMAS passive marker based motion analyser to track
> the movement of rats. The markers are stuck on the skin of the
> animals and they usually get rid of some markers after a while.
> We are considering to use retroreflective paint. Could someone
> give information where can such spray or paint be bought?
> Thanks in advance,
> Akos
> ---------------------------------------------------------------
> Dr.Akos JOBBAGY PhD, associate professor
> Dept. Measurement and Instrument Eng., TU Budapest