Mirka 5" Galaxy Multifit Grip Sandpaper 50/Bx

Mirka Galaxy 5" Multifit Sanding Discs

The Mirka Galaxy 5" Multifit sanding disc is a high-performance abrasive designed to deliver fast cutting, long service life, and exceptional dust extraction. Built with self-sharpening ceramic grain technology, Galaxy abrasives continue cutting efficiently as the grains break down and expose fresh abrasive edges.

This innovative abrasive system is engineered for professionals who demand consistent results when sanding fiberglass, gelcoat, marine primers, fairing compounds, paint systems, and composite materials.

Self-Sharpening Ceramic Grain Technology

Mirka Galaxy discs use advanced ceramic abrasive grains designed to stay sharp throughout sanding. As the grains wear, they fracture to create new cutting edges, allowing the abrasive to continue cutting efficiently from start to finish. This results in faster sanding and significantly longer abrasive life.

According to Mirka’s product specifications, the ceramic grain technology maintains cutting performance while producing a scratch pattern that is easy to polish out in finer grits. :contentReference[oaicite:0]{index=0}

Multifit Hole Configuration

Mirka Galaxy discs feature the Multifit universal hole pattern, designed so the abrasive can be installed on nearly any random orbital sander without needing to align holes.

The optimized hole placement allows:

• Excellent dust extraction
• Reduced clogging
• Improved sanding efficiency
• Longer abrasive life

The Multifit configuration provides a balance between durability and dust removal while making the discs compatible with a wide range of sanding machines. :contentReference[oaicite:1]{index=1}

Ideal Applications

Mirka Galaxy 5" sanding discs are designed for sanding a wide range of materials including:

• Fiberglass laminates
• Gelcoat surfaces
• Marine primers and coatings
• Fairing compounds
• Automotive paint systems
• Composite materials
• Wood and fillers

These discs perform especially well in marine refinishing environments where dust control and consistent cutting performance are critical.

Technical Specifications

• Disc Size: 5" (125 mm)
• Attachment: Hook & Loop
• Hole Pattern: Multifit universal configuration
• Grain: Ceramic / Aluminum Oxide blend
• Backing: Polyester film
• Bonding: Low VOC resin system
• Coating: Semi-open
• Grit Range: 40 – 2000

Why Professionals Choose Mirka Galaxy

• Faster cutting with self-sharpening ceramic grains
• Reduced clogging and longer disc life
• Universal compatibility with random orbital sanders
• Superior dust extraction performance
• Consistent scratch pattern for easier finishing

Recommended Equipment

For best performance, pair Mirka Galaxy abrasives with professional dust extraction systems such as the Mirka 1230X Dust Extractor and sanders like the Mirka DEROS II 550X or 600X.

Proper dust extraction improves sanding performance, extends abrasive life, and keeps work environments cleaner.