Getting Smoothing Compound to Dry Quickly

In my previous post, the wall had the thick, knock-down texture that is typical in new tract homes in the Houston area. You can’t hang wallpaper on this texture, because it looks bad under the paper, and because it interferes with good adhesion.

The solution is to “skim-float” the walls with joint compound, a.k.a. “mud,” which is much like plaster. The mud needs time to dry. When the texture on the walls is super heavy, as in this home, I usually let the smoothing compound dry overnight. That does add an extra day – and an extra day’s cost – to the job.

To save these homeowners from paying for that extra day, we pulled out all the stops. In this photo, you see my two box fans and my heavy-duty black floor fan blasting away at the wall. In addition, we have the room’s ceiling fan. And, in the lower left corner, the homeowner added his yellow “squirrel cage” fan.

Once the wall got half-way dry, I used my heat gun – the yellow gizmo you see lying on the dropcloth, which I call “The Great Persuader” – to speed up the drying process in stubborn areas.

Still, it took a long time for the wall to completely dry. Next I had to sand the “mud” smooth, vacuum up the dust, wipe residual dust off the wall with a damp sponge, and then apply a primer.

Start to finish, all that prep, plus hanging the paper – a whole 3.1 strips in 35 sq. ft. of space – took nearly eight hours.

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