8
PREPARATION & SETUP (cont.)
Sandpaper Selection
Selecting the correct grit of sandpaper is an important step in achieving optimum
results. Coarse grit will remove the most material. Finer grit will produce a smoother
finish. The condition of the workpiece will determine the grit of the sandpaper to be
used. The higher the grit number, the finer the grade of sandpaper.
If the surface is rough, start with a coarse grit and sand until the surface is uniform.
Medium grit may then be used to remove scratches left by the coarser grit. Finer grit is
then used to finish the surface. Always continue sanding with each grade of sandpaper
until the surface is uniform.
Note:
If intermediate sanding is required, choose a grit rating between coarse and
fine. The above table is intended as a guide only. To ensure a satisfactory result, a
small, inconspicuous area should first be tested to ensure the grit of sandpaper chosen
is suitable for the desired finish.
GUIDE TO SANDPAPER GRIT SELECTION
MATERIAL
APPROPRIATE GRIT
Coarse Sanding
Fine Sanding
Paintwork
180
400
Wood:
Softwood
60
240
Hardwood60
180
Veneer
240
320
Metals:
Aluminium
80
240
Steel
60
240
Stainless Steel
120
240
Summary of Contents for DSG-172K
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