3M Scotch-Brite 29745 Maroon 6 x 1/2 Inch Medium Aluminum Oxide High Strength Disc – 40/Pack

Description

3M Scotch-Brite 29745 Maroon 6×0.5in Medium High Strength Disc – 40/Pack for Aerospace Conditioning

3M Scotch-Brite 29745 Maroon Medium Aluminum Oxide High Strength Disc is a non-woven abrasive disc designed for use with disc tools, orbital sanders, and random orbital machines for surface conditioning, paint removal preparation, and blending operations on aircraft surfaces. The 6 inch diameter by 1/2 inch thickness provides a standard disc form factor for rotary disc tool use, while the High Strength construction provides greater durability and lifespan compared to standard Scotch-Brite discs in demanding machine-applied applications.

The Maroon Medium grade designation indicates this disc provides a moderate cutting rate — more aggressive than Very Fine and Ultra-Fine grades for initial surface preparation, paint de-bonding preparation, light corrosion removal, and surface conditioning where faster material removal and de-glossing is required before subsequent finishing steps with finer grades. The aluminum oxide abrasive mineral in the disc provides consistent cutting action throughout the disc’s life as the three-dimensional non-woven construction continuously exposes fresh mineral.

The 40-pack format provides a production supply for MRO shops, aircraft maintenance facilities, and surface finishing operations that use orbital disc tools for aircraft surface preparation. The high-strength construction extends disc life compared to standard grade discs, providing better economy in high-volume surface preparation operations.

Technical Information

3M Scotch-Brite 29745 uses aluminum oxide abrasive mineral bonded in a high-density non-woven fiber web — the High Strength designation indicates a stiffer, denser web construction that resists breakdown under the higher pressures and speeds of machine-applied disc applications compared to hand pad grade non-woven constructions. The higher density and mineral loading of High Strength discs provides more aggressive material removal and faster de-glossing than equivalent hand pad grades, while maintaining the conformability and random scratch pattern benefits of non-woven abrasive construction.

Machine application with orbital or random orbital disc tools amplifies the cutting action of the Scotch-Brite 29745 compared to hand application, enabling efficient surface conditioning of larger areas in less time than manual preparation. Random orbital tool motion combined with the random scratch pattern of non-woven construction produces a particularly uniform surface preparation result with minimal directional scratch pattern that would require additional hand blending to remove.

Mount the 29745 disc on a compatible backing pad for the orbital or random orbital tool being used. Use the disc at the tool’s recommended speed range for non-woven abrasive discs — excessive tool speed can overheat the non-woven web and reduce disc life. Apply moderate, uniform tool pressure and maintain consistent tool movement to produce an even surface preparation result across the work area.

Why Choose?

• ✅ High Strength Construction — Extended disc life for machine applications
• ✅ Maroon Medium Grade — Effective de-glossing and surface preparation
• ✅ Machine-Compatible — For orbital and random orbital disc tools
• ✅ Random Scratch Pattern — Uniform, omnidirectional surface preparation
• ✅ 40-Pack Economy — Production supply for high-volume operations

Applications

Scotch-Brite 29745 High Strength Discs are used for machine-applied surface preparation on aircraft fuselage panels, component surfaces, and repair areas — de-glossing existing paint for recoating adhesion, preparing metal surfaces for primer, and surface conditioning operations in aerospace MRO and aircraft finishing operations.

Frequently Asked Questions

Q: What is 3M Scotch-Brite 29745 Maroon?
A: The 29745 is a Maroon Medium grade High Strength non-woven disc for machine-applied surface conditioning on aircraft — more aggressive than Very Fine grades for efficient de-glossing and surface preparation with orbital disc tools.

Q: MPN for 3M Scotch-Brite 29745 40-pack?
A: MPN is 7001120986.

Q: What is High Strength construction?
A: High Strength indicates a stiffer, denser non-woven web construction engineered for machine application — it resists breakdown under the higher pressures and speeds of orbital disc tools compared to standard hand pad constructions.

Q: What disc tool is required for the 29745?
A: The 6-inch disc is compatible with 6-inch orbital and random orbital disc tools with an appropriate backing pad. Verify tool compatibility and speed rating for non-woven abrasive disc applications.

Q: How many discs in a pack?
A: Each pack contains 40 Scotch-Brite 29745 Maroon Medium High Strength Discs.