Each Cratex size and shape is made in four standard
Grit Textures or compositions which differ in accordance with the mesh size of the
abrasive grain used. [C] COARSE (Green) [M] MEDIUM (Dark
Brown) [F] FINE (Reddish Brown) [XF] EXTRA FINE (Grey
Cratex Standard Bond
The Cratex bond common to each of the four Grit Textures is made with premium grade
oil-resistant chemical rubber. In contrast to conventional grinding wheels the Cratex bond
has unique cushioned action...cuts freely, smoothly and softly without gouging or digging
into the work surface. It resists clogging or smearing, and is ideal for a broad range of
applications where metallic or non-metallic surfaces must be smoothed and polished without
loss of dimensional tolerances or control.
Cratex Hard Bond
The Cratex Hard Bond increases the cutting action when compared to the Cratex standard
bond and is designed for use only in specialized applications. The Hard Bond removes burrs
on hard metals like stainless steel and can also be used for light grinding on
applications where light metal removal is essential. Many Cratex Flexible Abrasive
Finishers, in each of the four grit textures are available in Hard Bond. Hard Bond is not
available in Kits and minimum quantities are required.
Cratex Abrasive Type
The abrasive type used in Cratex Rubberized
Abrasives is premium-quality Silicon Carbide that has been washed, dried and treated to
remove impurities and then carefully screened to U.S. Department of Commerce standards for
size. Although silicon carbide is more expensive than other abrasive materials, it is used
because it has a high level of purity and has been found to be best for the broadest range
of light deburring, smoothing, cleaning and polishing applications on ferrous and
non-ferrous alloys as well as many non-metallics, such as glass.
Shapes and Sizes
The Cratex Wheels, Points, Cones, Blocks and
Sticks listed are all available as standard products. The occasional need for non-catalog
shapes or compositions can usually be solved by adapting or modifying standard shapes and
compositions to meet special requirements. Several wheels can be mounted in series for
added width. The abrasive action of the wheels can be softened by using lower operating
speeds and lighter work pressures. Cratex Rubber Bonded Abrasives can also be dressed or
shaped to special contours using conventional abrasive wheel dressing tools and methods.
Need more information? Contact Us.
All Cratex Rubberized Abrasives are made and safety inspected to the requirements of American National Standards Institute (ANSI) publication, B7.1 safety requirements for the use, care and protection of abrasive wheels. This publication should be made available to all operators of Cratex products. Copies of this publication are available from UAMA or ANSI listed below:
30200 Detroit Road
Cleveland, OH 44145
American National Standards Institute
New York, New York 10018
PLEASE DIRECT ALL QUESTIONS PERTAINING TO CRATEX ABRASIVES DIRECTLY TO CRATEX AT:
Tel. 800-800-4077 / 760-942-2877
Warranty and Returns Policies
If any Cratex item does not perform as
promised it is returnable for full credit or exchange.
Return of products ordered in error will be subject to a
re-stocking charge. Cratex will accept the return of large quantities whenever possible.
Special orders may not be returned.
All returns must be accompanied by a Returned Goods
Authorization Number which can only be obtained from the Cratex Customer Service
Specify the part number and grit texture. [C]
Coarse, [M] Medium, [F] Fine, [XF]
Extra Fine. For Example: 54-C. Certain products are sold in units of 1 and others in boxes
of 100. Refer to the Price List to
verify the correct unit when ordering.
Hard Bond - Specify the part number, grit texture and bond.
Example: 54-C HB.
Light Deburring and smoothing to
relieve stress concentrations and to remove visible and microscopic burrs without
impacting surrounding areas.
Smoothing and polishing to improve wearing
qualities and to reduce the dangers of progressive fracture and fatigue failure.
Cleaning and polishing to remove
undesirable surface deposits.
Polishing and smoothing to improve
performance, appearance, cleanliness and to lessen the dangers of surface contamination.
Typical Applications Include:
Breaking edges, radiusing and polishing out
high spots, removing rust, cleaning threads, smoothing the edges of punched or sheared
metal, deflashing, smoothing and polishing molds, dies and other production tools,
sharpening and honing of cutting dies, blades and edged tools, removing corrosion, excess
solder, heat marks, cleaning and polishing contact points, jacks and electrodes, removing
tool marks, scratches light burrs, and fins, blending in welded seams after rough
grinding, engine turning, damaskeening, polishing engine ports, shafts, turbine blades,
smoothing glass edges, jewelry finishing, gem stone sanding and many others.
Cratex Rubber-bonded Abrasives are used in a widely
diversified list of industries, on production and assembly lines, in finishing operations,
in tool and machine shops, in the production of basic tools, instruments, component parts
and for maintenance and repairs.