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Refinishing An Old Dresser -
Part 2
Sanding and Surface Preparation
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In
This Article:
The dresser and drawer boxes are sanded
with a progression of sanding grits from 60 to 150. Some
special tools and techniques are used to sand the crevices
and details. |
Related Articles:
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Skill Level:
2-3 (Basic to Intermediate)
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Time Taken:
About 12 Hours
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By
Bruce W. Maki,
Editor
Continued From Part 1:
In
Part 1
we applied chemical stripper to the dresser and
drawer boxes, and then power-washed the surfaces
to remove the residue.
We let everything dry
in the garage overnight, positioning a couple of
fans to blow air over all the parts.
After drying, there was some white "sludge"
residue on many areas. |
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The next day
I started sanding the larger surfaces with a random orbital sander
and 60 grit sandpaper. The "sludge" came off
really easy.
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Sanding the large surfaces of the
dresser case (the top and sides) was quick and easy with the
random orbital sander. After the initial sanding with 60
grit, I sanded the case again with the random orbital sander
and 80 grit sandpaper, making sure that the second
sanding removed the scratches made by the 60 grit sanding.
These areas took about an hour to sand.
I realized
that these little white plastic drawer guides
could be removed with a small prybar.
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Sanding The Face Frame:
I tried different sanding methods.
At first I tried using a random orbital
sander, but it was too aggressive and caused the narrow boards to
become slightly rounded.
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This is a
Fein Multimaster,
a fairly expensive
tool at $200.
I installed the sanding head and stuck a
piece of 80 grit hook-and-loop sandpaper to it.
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I also used
the Fein Multimaster on the face frame. This
worked better than a random orbital sander... it
didn't round off the wood.
Note that the head
of this tool rotates back-and-forth a very
slight amount, so it can leave scratches across
the grain, which is undesirable. |
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Since I wrote this article, there are several brands of
oscillating cutting and sanding tools on the market, such as this one from Bosch.
I haven't used it, but I discovered that the Bosch cutting blades will fit
my Fein Multimaster.
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Hand sanding with a sanding block and 80 grit
sandpaper also did a pretty good job, and
removed any cross-grain scratches caused by the
Multimaster.
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The
Multimaster worked great for sanding into the
corners, but it left some scratches across the
woodgrain.
I didn't care about cross-grain
scratches on the inside surfaces of the face
frame, where they won't be seen. However, on
some furniture or cabinets, such areas might be
visible, so further sanding would be a good
idea. |
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The Fein Multimaster also worked well for sanding the flat
surfaces on the face frame.
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To sand the
lower sections, I found it easier to work when
the dresser was laying on it's back. I just
tipped the dresser over and laid it on a pair of
folding benches.
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This is the Fein Multimaster with the
optional profile sanding head.
There are several different shapes of rubber backing pads that
can be used for different contours.
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I used the
Multimaster to sand the concave parts of the
legs.
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At this point I realized that the dresser had
metal glides, which can scratch hardwood floors.
So I pried off the glides with a tack puller.
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These glides
are just small steel cups that are hammered into
the bottom of the legs. Later I'll replace these
with new plastic glides.
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Sanding The Grooves:
I wrapped a
piece of sandpaper around the tip of a 6-in-1
painter's tool. A dull putty knife would work
just as well. |
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I pushed the
putty knife into the grooves and pulled it
along. This worked quite well for sanding deep
into the grooves. I used 100 grit sandpaper and
it did a good job, but sometimes coarser
sandpaper might be needed if the wood is
particularly hard or the finish is stubborn to
remove.
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Note On Filling Small Holes and
Cracks:
It's common to find small holes
and cracks in wood furniture. These holes should be
filled with a stainable wood putty, allowed to dry, then
sanded.
While sanding this
dresser I did notice a couple of small cracks, but I
figured that they would get filled in by the urethane.
Oops... figured wrong! What was I thinking? Out
of practice, I guess.
Some very
small cracks may get filled by the urethane, but
it's not wise to take chances. When in doubt, apply
putty. |
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Sanding The Dresser Drawers:
This dresser had eleven drawers... 6
narrow drawers and 5 wide ones. To speed up the work, I devised some
production techniques to minimize wasted time. The main idea is to
keep all the needed tools nearby, organize the "before" and "after"
workpieces close to my work table, and keep unnecessary movements to
a minimum. These are just basic industrial engineering concepts.
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I sanded the drawer boxes in my basement. I
used a plastic folding table with a rubber
sanding matt to keep the drawers from sliding
around.
The tools I used:
- A random orbital
sander with an 80 grit sanding disc,
- Three
sandpaper-holding pads (about $4 at Harbor
Freight Tools),
- A small block of wood to wrap
sandpaper around,
- A medium-fine sanding sponge,
- A brush.
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I placed a fan in the window behind my work
area, and I opened a window on the other side of
the basement for cross-ventilation.
The first
areas I sanded were the back sides of the edges
of the drawer faces. I used 100 grit sandpaper
wrapped around a block of wood.
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On the sides it was necessary to sand across the
grain. Cross-grain sanding is
almost always avoided, but in this case I did it
because the scratches won't be seen.
My goal
here is to remove any residue from stripping, so
the stain penetrates into the wood properly. |
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Some of the
drawers still had some residue from the stripping
process...
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...which was easily removed by the random
orbital sander.
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I sanded the
other sides of the drawer box and the face with 80 grit sandpaper
on the random orbital sander.
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Then I sanded the inside surfaces with the
random orbital sander. However, this machine
cannot reach all the way into the corners.
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Close-up shot
of the unsanded areas in the corners.
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So I used a
sanding pad with 100 grit sandpaper to sand into
the corners.
Then I repeated the procedure with 120 grit
sandpaper wrapped around the block of wood.
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Inspecting
The Surface:
I used a bright flashlight shining
sideways across the wood to examine the
scratches.
Shining a light nearly parallel
with the surface is a good way to find the
blemishes and flaws in the surface.
The worst
scratches were in the spot inside the red
circle, which can be seen below. |
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A closer
view:
These were some pretty heavy scratches.
To fix this problem, I repeated the entire
sanding procedure: Random orbital with 80 grit,
hand-sanding with 100, 120 and 150 grit. I
inspected the surface after each step to make
sure the biggest scratches were being removed. |
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I sanded the contoured edges of the face with 100
grit sandpaper and a block of wood. I did this
mainly
to clean up the wood in the sharp inside corner near
the edge.
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On the sides
of drawer face I had to sand across the grain.
After this I sanded the ends
parallel to the
grain, using short strokes with a "pulling"
motion. This removed the cross-grain scratches. |
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Then I sanded the rounded edges with a sanding
pad, which is soft enough to conform slightly to
the curved contour.
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I also sanded
the edges with a fine-grit sanding sponge.
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Finally, I sanded the rest of the drawer box
with the fine-grit sanding sponge.
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After sanding each piece, I blew off
the sanding dust with compressed air and a whisk broom. I
kept a fan in a nearby window to help pull the dust out of
the basement. When I apply the stain and urethane I will
need a clean dust-free work area.
More Info:
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- Random Orbital Sander, 5 Inch
- Fein Multimaster with Detail Sanding Head
- 1/3 Sheet Sanding Pads
- Small Block of Wood
- Sanding Sponges, Medium, Fine and
Extra Fine
- 6-in-1 Painters Tool or Putty Knife
- Tack Puller
- Air Compressor and Blow Gun
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Materials Used:
- 5-Inch Sanding Discs: 60 and 80 Grit
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Sandpaper: 100, 120, 150 Grit
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