Mirka Galaxy 8" Grip Sanding Discs

Mirka Galaxy 8" Grip Sanding Discs - 60 to 180 Grit

Mirka Galaxy 8" Grip Discs are built for aggressive stock removal and heavy fairing on large surfaces. Galaxy's precision-coated ceramic grain combined with Mirka's advanced resin system delivers a faster cut and dramatically longer disc life than standard aluminum oxide abrasives - a cost-per-disc win for yards running 8" file boards and large random orbital sanders.

Available Grits

• 60 Grit (FY-631-060): Aggressive stock removal, stripping gelcoat and old bottom paint, heavy fairing.
• 100 Grit (FY-631-100): Secondary fairing pass after 60, leveling large repairs.
• 120 Grit (FY-631-120): General fairing and primer prep on big surfaces.
• 150 Grit (FY-631-150): Finish fairing, high-build primer leveling.
• 180 Grit (FY-631-180): Final prep before topcoat or gelcoat.

Why Galaxy Outperforms Standard Abrasives

• Ceramic grain for faster cut and longer life than aluminum oxide.
• Self-sharpening abrasive maintains cut rate through the life of the disc.
• Advanced anti-clog coating extends disc life on soft, gummy substrates.
• Hook-and-loop backing for quick changes on file boards and large RO sanders.
• 50 discs per box - built for shops that go through abrasives.

Ideal Applications

• Marine fairing and bottom paint removal
• Large hull refinishing and primer leveling
• Composite and fiberglass stock removal
• Auto body work on large panels
• Any 8" file board or random orbital sanding operation

Product Specifications

• Brand: Mirka Galaxy
• Size: 8" Grip (Hook & Loop)
• Pack: 50 discs per box
• Backing: Hook-and-loop
• Grain: Ceramic with anti-clog coating
• Mirka Part Numbers: FY-631-060, FY-631-100, FY-631-120, FY-631-150, FY-631-180

Choose Galaxy 8" when you need to move material fast on large surfaces without burning through boxes of discs. Pair with Mirka 8" backing pads and dust extraction for a clean, efficient fairing workflow.