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7" Silicon Carbide Floor Sanding Discs

7" Silicon Carbide Floor Sanding Discs

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Professional Silicon Carbide Floor Sanding Discs — 7"

USA1 Abrasives 7" Silicon Carbide Floor Sanding Discs are engineered for professional floor refinishing contractors and serious DIYers tackling hardwood floor restoration. Silicon carbide's superior hardness and sharpness cuts through old finishes, stains, and surface imperfections faster than aluminum oxide, delivering a clean, uniform surface ready for new finish application.

Technical Specifications

  • Abrasive Material: Silicon carbide
  • Backing: Heavy-duty paper or cloth (depending on grit)
  • Diameter: 7 inches with 7/8" center hole
  • Package Size: 50 discs (12–36 grit) / 100 discs (40–120 grit)
  • Application: Dry floor sanding
  • Compatible Machines: 7" floor edgers and disc sanders

Key Features & Benefits

  • Silicon Carbide Abrasive: Harder and sharper than aluminum oxide — cuts old finishes faster
  • Fast Finish Removal: Efficiently strips polyurethane, varnish, wax, and old stains
  • Consistent Scratch Pattern: Uniform grit distribution ensures even surface preparation
  • Professional Grade: Built for the demands of commercial floor refinishing
  • Full Grit Range: Available from coarse (for stripping) to fine (for final prep)
  • Reduced Clogging: Silicon carbide's sharp grains stay cleaner longer

Recommended Applications

  • Hardwood floor refinishing and restoration
  • Stripping old polyurethane, varnish, and wax finishes
  • Edging and detail work on floor perimeters
  • Leveling cupped or uneven floorboards
  • Preparing floors for new stain and finish application
  • Between-coat sanding on floor finishes

Floor Sanding Grit Progression

  • 12–36 Grit (50 discs): Initial cut on heavily damaged or thick-finish floors
  • 40–60 Grit (100 discs): General stripping and leveling
  • 80 Grit (100 discs): Intermediate smoothing, removing previous grit scratches
  • 100–120 Grit (100 discs): Final sanding before stain or finish application

Professional Tips

  • Always sand with the grain of the wood
  • Keep the machine moving to prevent gouging
  • Progress through grits sequentially — don't skip more than one grit
  • Vacuum thoroughly between grit changes
  • Use edger discs to match the grit used on the main floor sander

Professional Floor Refinishing Results. Silicon Carbide Performance.