- Water-based stearate coating resists loading for extended abrasive life.
- Disc materials are non-pigmented and prevent color transfer to the work surface.
- P-graded, heat-treated, aluminum oxide abrasive is durable and offers a consistent scratch pattern for a fine finish.
- Pressure-sensitive adhesive, for easy application without needing solvents, water, or heat.
- Paper backing is flexible, and offers a more consistent finish than cloth or fiber.
- Premium heat-treated grain provides 30-50% faster cut rate and extended life.
- Premium B-weight latex fiber re-enforced paper backing is tear resistant, more flexible and provides easier disc removal.
- FEPA P-graded grain achieves a more consistent, uniform scratch pattern.
- Superior bond system optimizes grain adhesion and extends cut life.
- Pressure Sensitive Adhesion (PSA) discs in convenient roll for ease of application.
Product Description
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The Norton A275 No-Fil pressure sensitive adhesive abrasive disc
forms a bond when pressure is applied to stick the disc to its
back-up pad, without the use of solvents, water, or heat to
activate the adhesion. This disc is used for preparing primed and
painted surfaces, sanding plastics and fiberglass, and bare wood
sanding.
Coated abrasives have individual abrasive grains spaced at a
predetermined distance from one another. This is an open-coat
disc. An open coat covers 50 to 70 percent of the surface with
abrasive grains, for greater flexibility and clog resistance than
a closed coat, which covers 100 percent of the surface. An open
coat allows for longer usage time because it clogs less, while a
closed coat offers a finer surface finish than an equivalent
open-coat abrasive. The stearate coating offers more durability
over an uncoated abrasive while resisting chip loading. Stearated
abrasives are non-pigmented to eliminate color transfer to the
work surface. High strength, fiber-reinforced B weight (paper is
classified from A to F weight, F being the heaviest and least
flexible) is strong – this strength means reduced edge wear
during use. The paper backing is flexible, and offers a more
consistent finish than a cloth or fiber backing, while being
thicker and more durable than a polyester film backing. This disc
is suitable for use with a die grinder or orbital sander. Use
with molded rubber back-up pads on a grinder, choosing a hard pad
for aggressive cutting, a medium pad for general purpose
applications, or a soft pad for contours and fine finishing work.
Or, with a random orbital sander, choose a foam back-up pad to
match the application. Foam pads can come in different
combinations of shape and density for finer or more aggressive
work. For example, choose a low profile for uniform contact with
the work surface or a tapered edge for small contours or inside
corners, choose soft density for 320 grit and finer sanding and
medium density for grits coarser than 320. This disc can be used
wet or dry.
Aluminum oxide is a widely used and versatile abrasive material.
It is a tough, fracture- and wear-resistant grit that works well
with a broad range of materials, from metals to wood. Aluminum
oxide is more durable than silicon carbide and often used for
material removal and finishing. P-graded abrasive grains are held
to a closer tolerance than non-P-graded abrasives, which means
that they offer a more consistent surface finish.
Abrasives are used for a variety of applications from shaping a
part to fine finishing, depending on the grit size. Low grit
numbers like 40 are coarse and are used for removing excess
material and shaping a part. High grit numbers like 400 are fine
and help to create a smooth surface finish.
Norton Abrasives manufactures a wide variety of sanding,
grinding, and polishing abrasives, and has been located in the
United States since 1885. In 1990, Saint-Gobain purchased Norton,
keeping their manufacturing facilities and offices in the same
location. Norton/Saint-Gobain has been recognized as a Global 100
Sustainable Company, as well as earning ISO 9000 and 14001
certification for quality and environmental management standards.
From the Manufacturer
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A275... the best sandpaper on the planet. A275 is sandpaper
technology at its best. It cuts faster, runs cooler, resists
loading better and lasts far longer than any conventional
sandpaper. Water based stearate No-Fil improves load resistance
and extends cut life. No pigment in No-Fil or bond eliminates the
risk of color transfer and creates a much stronger bond. Premium
quality PSA (pressure sensitive adhesive) discs in convenient
roll form are ideal for use with Norton Disc Roll Dispensers.
Simply tear off and apply self-adhering disc to Stick and Sand
Back-Up Pad. Packed in handy corrugated boxes for ease of use,
and individually wrapped in polybags. 100 discs per roll.