Everything you need to know about Sanding!
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or Paper Backing?
primary differences between cloth and paper backings lie in
the areas of durability and flexibility. In addition, cloth
backings are significantly more expensive than paper backings.
backings are available in two grades, labeled X
and J. Of the two, X backings are
the stiffest and heaviest and are best for heavy machine sanding
operations, such as belt sanders. J backings are
lighter in weight and more flexible, and are therefore used
for lighter-duty machine sanding (such as drum sanding) and
hand-sanding operations, where flexible is important for reaching
into contoured areas.
backings come in five weights, ranging from A
(the lightest) to F (the heaviest). Generally,
the lighter weight papers are reserved for finer grits while
heavier papers are more common with coarser grits. Paper backings
are used primarily for hand sanding sheets, disc sanders,
some drum sanders and orbiting sanders. For most applications,
C or D weights (referred to as cabinet
papers) are best.
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