Introduction

In an ideal world, all darkrooms would have a hard plaster or drywall ceiling. This isn't always possible, particularly in many commercial buildings. Suspended ceilings are generally terribly dusty things-both because the tiles themselves shed and because the space above them is an ideal collecting ground for dust which will eventually work itself around the tiles.

Over the years I've worked in several photo labs with suspended ceilings. They've never been entirely satisfactory. One I've seen was so bad that the technician covered the ceiling with plastic and duct tape.

Sealing a suspended tile ceiling turns out to be pretty simple. The method outlined here is modified from something I saw used to close up a clean-room style laboratory.

When the stuff dries, clean out the entire room, and move back in.
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Dale Austin mrwizard@umich.edu

All images and text copyright 1995, 1996, 1997, 1998 Dale Austin-All Rights Reserved
Last Modified 7/21/98 http://www-personal.umich.edu/~mrwizard