What is the difference between aluminum oxide and silicon carbide discs?
Aluminum oxide is harder and longer-lasting, making it ideal for wood, metal, and painted surfaces. Silicon carbide is sharper but more brittle — best for glass, stone, and final finishing on soft materials. Many discs use both grains to balance speed and finish quality.
Can I use these discs wet?
Standard paper-backed hook and loop discs are designed for dry sanding. If you need wet sanding capability (e.g., automotive clear-coat finishing), look for film-backed or waterproof versions in 400# and above.
What grit should I start with for bare wood?
For rough stock with milling marks or hand-plane tracks, begin at 80# or 100#. For already-smooth surfaces, start at 120# and step through 150# → 180# → 220# before finishing. Never skip more than one grit — it leaves deep scratches the next grit struggles to remove.
Are custom sizes and grit configurations available?
Yes. The manufacturer's engineering team can produce custom diameters, hole patterns, grit sequences, and branded packaging for OEM and bulk buyers. Contact for specifications and MOQ details.
