Scotch-Brite™ EXL Unitized Block

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EXL material offers great durability and edge retention for tough burrs and sharp edges

Highly durable block is suitable for a wide range of deburring and finishing applications

Cut-to-size block may be shaped according to application

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Safety Data Sheet (PDF, 0B)

Details

Highlights
  • EXL material offers great durability and edge retention for tough burrs and sharp edges
  • Highly durable block is suitable for a wide range of deburring and finishing applications
  • Cut-to-size block may be shaped according to application
  • Available in a range of grades, minerals and densities
  • Nylon fibers break down to expose fresh mineral, leading to more consistent finishes
  • Gaps between fibers permit debris to escape, helping with load resistance

Scotch-Brite™ EXL Unitized Block is a strong, durable high-performance block built for a wide range of deburring and finishing applications. One of the best benefits of a unitized block is that it can be converted into another form: shape it into mounted points, use it by hand or bond it to tools for honing.

Tailored to Fit: Picking Mineral, Grade and Density
Scotch-Brite™ EXL Unitized Block comes in a few variations, making it easy for operators to find an abrasive tailored to their application. Unitized densities, for example, range from 2 to 8. Likely, a density of 2 is a good choice when trying to keep part geometry intact. Flexible and soft, low-density abrasives tend to conform better to the workpiece. Conversely, if a workpiece requires a stiffer, harder abrasive, a density of 8 may be a better choice. Priorities shift depending on the workpiece and application; we created the unitized block in a few different densities for these reasons.

Density   Grade   Grain
5 = Soft   1 = Coarse   1 = A/O
6 = Soft/Medium   2 = medium   2 = S/C
7 = Medium/Hard   2 = medium   4 = S/C
8 = Hard       Firm*
9 = Extra Hard       *Available only as a Type 524
         



In addition to densities, operators can choose from different grades of aluminum oxide and silicon carbide. Aluminum oxide is a synthetic mineral known for its high cut-rate, hardness, strength and low heat retention. It is suitable on a wide variety of substrates in both woodworking and metalworking, including ferrous alloys. Silicon carbide is used for creating different aesthetic finishes. It tends to wear faster than aluminum oxide but leave brighter finishes.

Mineral Performance Comparison
Our Standard Abrasives™ Surface Conditioning GP Belt is engineered to provide a consistent cut-rate while producing a uniform finish. Constructed of resin-reinforced non-woven fibers, this belt resists loading and minimizes under-cutting or gouging of the workpiece.

Built for Strength
Scotch-Brite™ EXL Unitized Block does offer uniform benefits, including durability and consistency. Unitized products are produced by compressing and curing multiple layers of abrasive material together. The tough and layered unitized construction gives the abrasive more durability, helping it resist wear and stand up to tough areas like edges and contours.

It is suitable on a wide variety of substrates in both woodworking and metalworking, including ferrous alloys.
Open web construction for the toughest jobs
The Many Benefits of Scotch-Brite™ Abrasives
Altogether, nonwoven technology makes our Scotch-Brite™ industrial abrasives unique. A combination of fiber strands, resin, and abrasive mineral forms a thick, open web. The spring-like nature of the fibers responds to contours and effectively removes unwanted burrs, soils, and contaminants while maintaining the geometry of the workpiece, which in turn reduces rework and boosts productivity. Gaps in the web allow swarf to escape, so debris does not clog the mineral. Fibers in the web continually break down with use to reveal fresh mineral for consistency, sharp cut and long service life.

From aesthetic finishing to weld blending, deburring, and more, Scotch-Brite™ abrasives work fast and deliver consistent results, part after part.

Typical properties

Resources

For industrial/occupational use only. Not for consumer sale or use.

3M industrial and occupational products are intended, labeled, and packaged for sale to trained industrial and occupational customers for workplace use.  Unless specifically stated otherwise on the applicable product packaging or literature, these products are not intended, labeled, or packaged for sale to or use by consumers (e.g., for home, personal, primary or secondary school, recreational/sporting, or other uses not described in the applicable product packaging or literature), and must be selected and used in compliance with applicable health and safety regulations and standards (e.g., U.S. OSHA, ANSI), as well as all product literature, user instructions, warnings, and other limitations, and the user must take any action required under any recall, field action, or other product use notice.  Misuse of 3M industrial and occupational products may result in injury, sickness, death, or property damage.  For help with product selection and use, consult your on-site safety professional, industrial hygienist, or other subject matter expert.