Woodstock W1828 - Manual (Page 20)

Model W1828 (For Machines Mfg. Since 4/11)
-18-
O
PE
R
ATIO
NS
Choosing Sandpaper Stock Inspection and
Requirements
The Model W1828 uses a 12" adhesive-backed
sanding disc.
There are many types of sanding discs to
choose from. We recommend aluminum oxide
for general workshop environments. Below is a
chart that groups abrasives into different classes
and shows which grits fall into each class.
Grit Type
24-36 Very Coarse
40-60 Coarse
80-100 Medium
120-180 Fine
220-360 Very Fine
The general rule of thumb is to sand a
workpiece with progressively higher grit
numbers, with no one grit increase of more
than 50 grits at a time. Avoid skipping grits; the
larger the grit increase, the harder it will be to
remove the scratches from the previous grit.
Ultimately, the type of wood you use and your
stage of finish will determine the best grit types
to install on your sander.
Some workpieces are not safe or may require
modification before they are safe to sand.
Before sanding, inspect all workpieces for the
following:
• Material Type: Sanding asbestos or
workpieces with lead paint can be
hazardous to your health. Do not sand
workpieces that contain these materials.
• Foreign Objects: Nails, staples, dirt,
rocks and other foreign objects are often
embedded in wood. While sanding, these
objects can tear the sandpaper. Always
visually inspect your workpiece for these
items. If they can't be removed, DO NOT
sand the workpiece.
• Excessive glue or finish: Sanding
workpieces with excess glue or finish
will load up the abrasive, reducing its
usefulness and lifespan.