3M 07447 Scotch-Brite General Purpose Hand Pad 9x6 in | Medium Aluminum Oxide Non-Woven Pad 20-Pack

3M 07447 Scotch-Brite General Purpose Hand Pad 9×6 in — Medium Aluminum Oxide Non-Woven Pad for Cleaning, Finishing & Surface Prep | 20-Pack

The 3M Scotch-Brite General Purpose Hand Pad combines flexibility with effective cutting action and precise hand control for tough cleaning, surface finishing, and surface preparation tasks. The non-woven aluminum oxide construction cuts fast and fine, leaving a smooth, conditioned surface finish — and the flexible pad conforms to curved and irregular surfaces that flat abrasives cannot reach effectively. A direct, reusable alternative to steel wool, sandpaper, and wire brushes for a wide range of marine maintenance, surface prep, and refinishing tasks. 9×6 in. pad size, 20 pads per package. No tool or attachment required — hand application only.

Part Specifications

• Part Number: 3M-07447
• Quantity: 20 pads per package
• Pad Size: 9×6 in.
• Grit Grade: Medium (general purpose)
• Color: Maroon (3M Scotch-Brite medium/general purpose color code)
• Abrasive Type: Aluminum oxide
• Construction: Non-woven — flexible, conforms to curved and irregular surfaces
• Application: Hand use — no tool or machine required
• Reusable: Yes
• Function: Clean, finish, blend, and prep surfaces
• Steel Wool Alternative: Yes — does not rust, shed wire fragments, or leave embedded metal particles

Marine Surface Prep Applications

The 3M Scotch-Brite General Purpose Hand Pad is a versatile surface conditioning tool for marine maintenance and refinishing work. Common applications on boats include:

• Surface preparation before painting or coating: Scuff-sanding gel coat, painted topsides, and primed surfaces to improve coating adhesion without heavy material removal
• Weld and grind mark blending: Conditioning stainless steel welds, aluminum weld areas, and grind marks to a consistent surface finish
• Rust and tarnish removal: Removing light surface rust, oxidation, and tarnish from stainless steel, aluminum, brass, and bronze hardware by hand
• Cleaning and degreasing prep: Scrubbing bilge areas, engine compartment surfaces, and hard-to-reach areas where a machine-mounted disc cannot fit
• Gelcoat scuffing: Scuffing gel coat surfaces before barrier coat or antifouling paint application
• Teak and wood surface prep: Conditioning teak handrails and wood trim before oiling or sealing

The hand pad format is particularly useful for confined spaces, curved hardware, and areas where a power tool cannot be used safely or practically — a common situation on boats with tight engine compartments, complex hull shapes, and intricate deck hardware.

Application Notes

• No tool required — apply by hand with moderate pressure using circular, overlapping, or straight strokes depending on the desired finish pattern
• For a consistent non-directional finish (preferable on stainless steel and decorative metal), use circular or random-orbit hand strokes rather than straight back-and-forth strokes
• Medium grade (maroon) is appropriate for general surface conditioning, coating adhesion prep, and light oxidation removal — for lighter final finishing before painting, use fine grade (gray)
• Reusable — rinse with water or solvent as appropriate for the application, allow to dry, and reuse until cutting efficiency decreases or the pad becomes loaded with debris
• Does not rust, shed wire fragments, or leave embedded steel particles in the surface — preferred over steel wool on stainless steel, aluminum, and fiberglass where steel contamination causes staining and corrosion issues
• Safe on gel coat, fiberglass, painted surfaces, stainless steel, aluminum, brass, bronze, teak, and other boat surfaces — test on an inconspicuous area on painted or finished surfaces before full application

Additional Information

• Vendor: 3M
• SKU: 3M-07447
• Product Type: Boat & Engine Maintenance / Surface Conditioning Pad
• Size: 9×6 in.
• Pack Quantity: 20 pads
• Country of Origin: USA
• HS Code: 6805.20 (abrasives on a base of woven textile or other materials — verify for your import classification)

Frequently Asked Questions

Q: Why use a Scotch-Brite pad instead of steel wool or sandpaper?
A: Steel wool rusts, sheds wire fragments, and can embed microscopic steel particles into fiberglass, gel coat, and stainless steel surfaces — causing rust staining that is difficult to remove. Sandpaper leaves directional scratch patterns and does not conform to curved surfaces. The Scotch-Brite non-woven pad does not rust or shed, produces a consistent non-directional finish, and flexes to conform to curved and irregular surfaces. It is also reusable, unlike sandpaper.

Q: What does medium grade mean for a Scotch-Brite hand pad, and what tasks is it suited for?
A: In the 3M Scotch-Brite color-coding system, maroon = medium/general purpose grade. It is suited for general surface conditioning, weld blending, light oxidation and rust removal, coating adhesion prep (scuffing before paint or primer), and surface cleaning. For lighter finishing or final prep immediately before painting, use a fine-grade pad (gray). For heavier stock removal or aggressive conditioning, use a coarse-grade pad.

Q: Are these pads reusable?
A: Yes — Scotch-Brite non-woven pads are reusable. Rinse with water (for water-based applications) or with an appropriate solvent (for paint, resin, or coating work) and allow to dry fully before reuse. Replace when the pad no longer cuts efficiently, when it becomes heavily loaded with debris that cannot be rinsed out, or when the pad structure breaks down.

Q: Can I use these on gel coat before applying antifouling bottom paint?
A: Yes — scuffing gel coat or barrier coat with a medium Scotch-Brite pad is a standard surface preparation step before applying antifouling paint to improve adhesion. Follow the antifouling paint manufacturer’s specific surface preparation requirements for the product being applied, as some require specific abrasive grades or solvents in addition to scuffing.

Q: Will a 9×6 in. hand pad fit into tight spaces on a boat like an engine compartment or bilge?
A: The 9×6 in. pad can be folded, cut, or torn to a smaller size for use in confined spaces. This is one of the main advantages of the hand pad format over machine-mounted discs — you can shape the pad to fit the work area and apply pressure by hand in areas where a power tool cannot safely reach.