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3M
Scotch-Bright 7521 Multi-Flex Abrasive Sheet Roll 8 in x 20 ft - Ultra Fine Aluminum Oxide, Maroon
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This product can expose you to chemicals known to the State of California to cause cancer and reproductive harm.Tap for details → P65Warnings.ca.gov
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Overview
Built for the job.
Scotch-Brite™ multi-flex sheets come on a 20 ft perforated roll and works quickly and economically for sealer sanding, denibbing, defuzzing, highlighting and top-coat finishing applications.
Why Pros Choose 3M MMM
- Faster, easier scuffing action - but not coarser
- Very flexible and conformable for cleaning or fine finishing
- Replaces steel wool to eliminate contamination
- Can be folded, stacked or rolled
How to Use
For woodworking, metalworking, synthetic fabrication and maintenance operations
Compatibility
Compatible substrates: Steel.
Specifications
| Part No. | 7521 |
|---|---|
| Product Line | MMM |
| MFR Model | 07521 |
| Application | For woodworking, metalworking, synthetic fabrication and maintenance operations |
| Manufacturer | 3M Products |
| Alternate Part Number-1 | 61500129244 |
| UPC | 051131075214 |
| Brand | Scotch-Brite™ |
| Maximum Sale Quantity | 4 |
| Maximum Sale Day | 7 |
| Grade | Very Fine |
| Abrasive Material | Aluminum Oxide |
| Length (ft) | 20 |
| Series | MX-SR |
| Width (in) | 8 |
| Color | Maroon |
About 3M
3M is a global leader in abrasives, masking, and body repair products. Trusted by OEM collision centers for high-performance prep and finishing solutions.
Frequently Asked Questions
What surfaces can 3M MMM be used on?
3M MMM is compatible with Steel. Always ensure the surface is properly cleaned, degreased, and sanded before application to achieve the strongest adhesion and a professional finish.
How fast does autofxmart ship 3M MMM?
Most in-stock orders for 3M MMM ship the same or next business day from our US warehouse. Expedited options are available at checkout. Freight-class items may require an additional 1–2 days for carrier pickup.
Is this 3M product genuine?
Yes. autofxmart is an authorized distributor of 3M products. Every unit is factory-fresh, sealed, and backed by the manufacturer's standard warranty. If you have a concern, contact support@autofxmart.com and we will make it right.
What is the manufacturer part number (MPN) for 3M MMM?
The MPN for 3M MMM is 7521. Use this number when cross-referencing against TDS, SDS, or legacy supplier catalogs.
Documents & Safety
Why Buy from autofxmart
- Authorized distributor — authentic, factory-fresh stock.
- Fast US shipping — most orders ship within 1 business day.
- 30-day returns — buy with confidence.
- Pro-shop pricing — bulk discounts available on request.
- Expert support — questions? Email us at support@autofxmart.com.
How to apply
Steps
1Pick the right grit for the stage of work.
2Mount on your sander or backing block.
3Work evenly and let the abrasive cut.
4Step through finer grits to refine.
5Blow off and wipe the surface before the next step.
Specifications
Full data
Frequently asked
Good to know
3M Products MMM is compatible with Steel. Always ensure the surface is properly cleaned, degreased, and sanded before application to achieve the strongest adhesion and a professional finish.
Most in-stock orders for 3M Products MMM ship the same or next business day from our US warehouse. Expedited options are available at checkout. Freight-class items may require an additional 1–2 days for carrier pickup.
Yes. autofxmart is an authorized distributor of 3M Products. Every unit is factory-fresh, sealed, and backed by the manufacturer's standard warranty. If you have a concern, contact support@autofxmart.com and we will make it right.
The MPN for 3M Products MMM is 7521. Use this number when cross-referencing against TDS, SDS, or legacy supplier catalogs.
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