3M 048011-04028 Scotch-Brite 7448 Gray Ultra-Fine 6 x 9 Inch Gray Hand Pad – Box of 20

Description

3M Scotch-Brite 7448 Gray Ultra-Fine Hand Pad – Box of 20 for Aerospace Finishing

3M Scotch-Brite 7448 Gray Ultra-Fine Hand Pad is a premium non-woven abrasive pad representing the finest grade within the standard Scotch-Brite hand pad line — the gray color designation identifies this pad as Ultra-Fine grade, finer than the Maroon (Very Fine) 7447, and used in aerospace and aviation applications for the final surface preparation steps, scuff sanding between topcoat coats, light surface cleaning, and producing a very fine, uniform scratch pattern for the most demanding finishing applications.

The Ultra-Fine grade of the 7448 is particularly valuable for aerospace refinishing applications where the surface must be prepared to the highest standard before final topcoat application — the very fine scratch pattern produced minimizes the leveling work required of the final topcoat and contributes to a smoother, higher-gloss final finish on aircraft exterior surfaces. The gray 7448 is also widely used for scuff sanding existing finish coats before recoating, intercoat adhesion preparation, and cleaning delicate aerospace surface materials where coarser abrasive grades would cause excessive scratch depth.

The box of 20 provides a practical production supply for aircraft paint shops, refinishing operations, and MRO facilities performing finish-quality surface preparation and intercoat scuffing on commercial and military aircraft components.

Technical Information

3M Scotch-Brite 7448 uses very fine aluminum oxide mineral bonded into a non-woven nylon fiber web at a lower mineral density than the Maroon 7447, producing the softer, finer cutting action characteristic of the Ultra-Fine grade. The lower abrasive mineral density and finer mineral particle size combine to produce a very fine scratch pattern with minimal material removal per stroke — enabling the finishing-quality surface preparation that Ultra-Fine pads are used for in aerospace finishing applications.

The Ultra-Fine grade approximately corresponds to a 400-600 grit equivalent range, making it appropriate for the finest hand-applied surface preparation operations in aerospace — scuffing between paint coats, preparing surfaces for clear coat application, removing very light contamination from sensitive surfaces, and producing a fine de-gloss on existing finish for adhesion preparation. The conformable non-woven construction of the 7448 follows the contoured surfaces of aircraft panels and components for consistent, uniform scratch pattern application without sharp edge pressure points.

For aerospace intercoat scuffing applications, use the 7448 with light, consistent pressure and uniform stroke patterns to produce an even, fine scratch pattern across the entire surface being prepared. After scuffing, remove all abrasive dust and residue with a clean tack cloth or compressed air blow-off before applying the next coat of paint or primer.

Why Choose?

• ✅ Ultra-Fine Grade — Finest standard Scotch-Brite hand pad grade
• ✅ Aerospace Finishing Quality — For intercoat scuffing and final preparation
• ✅ Gray Color Code — Easily identified Ultra-Fine grade in the system
• ✅ Conformable Construction — Follows aircraft surface contours uniformly
• ✅ Box of 20 — Production supply for finishing and MRO operations

Applications

Scotch-Brite 7448 Gray Ultra-Fine is used for intercoat scuffing in multi-coat aircraft paint systems, final surface preparation before topcoat application, light surface cleaning of sensitive aerospace materials, and producing fine de-gloss for adhesion preparation on aircraft surfaces.

Frequently Asked Questions

Q: What is 3M Scotch-Brite 7448 Gray?
A: The 7448 Gray is an Ultra-Fine grade non-woven abrasive hand pad — the finest standard Scotch-Brite grade, used for intercoat scuffing, final surface preparation before topcoat, and producing the finest scratch pattern in aerospace finishing applications.

Q: MPN for 3M Scotch-Brite 7448 6×9 box?
A: MPN is 7100009226.

Q: What is the difference between 7447 Maroon and 7448 Gray?
A: 7447 Maroon = Very Fine (approx. 280-320 grit). 7448 Gray = Ultra-Fine (approx. 400-600 grit). Use Maroon for initial scuffing and 7448 Gray for final preparation and intercoat scuffing in multi-step finishing procedures.

Q: Can 7448 be used on composite aircraft surfaces?
A: Yes. Ultra-Fine Scotch-Brite is commonly used on composite surfaces for adhesion preparation. Follow the applicable composite surface preparation procedure for the specific repair or finishing application.

Q: How many pads in a box?
A: The box contains 20 pads of 6 x 9 inch Scotch-Brite 7448 Gray Ultra-Fine Hand Pads.