TW writes:

If you scrub, you will make a chassis that looks scrubbed. What I sometimes
do is blast the majority of the dust off with compressed air, and a gentle
dusting with a paint brush..

-Chuck

DO NOT blow off the dust. If it is Cadmium, you are poisoning yourself
and your work area. Rinse it off, but don't scrub. Then use a thin clear
acrylic to seal it. Very nasty stuff. Cadmium is a much more lethal
item than asbestos.
--
Steven D. Swift, , http://www.novatech-instr.com
NOVATECH INSTRUMENTS, INC. P.O. Box 55997
206.301.8986, fax 206.363.4367 Seattle, Washington 98155 USA