Features
- Open-coat aluminum oxide abrasive to resist loading
- Double-resin bonding for durability and extended belt life
- Anti-static backing to reduce loading and improve material removal
- Butt-splice construction for smooth running in both directions
- X-weight backing for added strength
Specifications
| Size | 3 in x 21 in |
| Grit | 120 |
| Abrasive Mineral | Aluminum oxide |
| Pack Quantity | 3 |
| Backing | Anti-static, x-weight backing |
| Bonding | Double-resin (resin-bonded) |
| Splice Type | Butt-splice |
| Weight | 0.28 lb (pack) |
| Upc | 000346338881 |
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Pack of three 3 in x 21 in sanding belts with 120-grit aluminum oxide abrasive. Open-coat, resin-bonded abrasive on an x-weight backing with an anti-static backing to reduce loading. Butt-splice construction allows the belt to run smoothly in either direction. Intended for sanding wood, metal, plastic and fiberglass.
Model Number: SB4R120
Project Ideas
Business
Mobile Deck & Fence Rejuvenation
Offer a streamlined sanding and re-stain service for decks/fences. 120-grit belts degloss old finishes and smooth splinters without over-thinning boards. Market as a one-day refresh: wash, spot-repair, sand, and stain. Upsell yearly maintenance packages.
Furniture Flip Finishing Studio
Source curbside or auction furniture, repair, then use belt sanding for flat panels and edges to prep for paint/stain. The anti-static backing reduces clogging on old finishes. Create a repeatable workflow: strip, 120-grit level sand, prime, color, topcoat. Sell via social platforms with before/after reels.
Brushed Metal Home Goods
Produce small-batch brushed aluminum products—bookmarks, coasters, switch-plate covers, and address plaques. Use 120-grit to establish a uniform grain pattern. Laser-etch or CNC engrave logos/monograms and clear anodize or clear-coat. Sell wholesale to boutiques and custom via Etsy.
Skate Deck Refurb Pop-Up
Set up at skate parks on weekends offering deck sanding, edge rounding, and re-grip packages. 15–20 minute service per board with tiered pricing (basic clean-up, full refurb, add-on custom stencil). Partner with local shops for cross-promotion.
Contract CNC Edge-Finishing
Offer post-processing for CNC-cut plywood/MDF/HDPE parts. 120-grit belts quickly remove tool marks and tabs, delivering parts ready for assembly or paint. Bill per-part or per-square-foot, and provide pickup/delivery for local cabinetmakers, makerspaces, and sign shops.
Creative
Live-Edge Charcuterie Board Finish
Flatten and smooth live-edge slabs for charcuterie boards. Use 120-grit belts to remove milling marks and tame bark-side fuzz while retaining natural contours. The open-coat aluminum oxide resists loading on resinous woods, and the anti-static backing helps keep dust from clogging. Follow with higher grits for a food-safe oil finish.
Mid-Century Plywood Tray
Cut a sleek oval or kidney-shaped tray from stacked plywood laminations and refine the curves on a handheld belt sander. The butt-splice belt runs smoothly in either direction, letting you blend compound curves. 120-grit provides an ideal pre-finish scratch pattern before applying lacquer or polyurethane.
Textured Metal Wall Art
Create brushed and cross-hatch textures on aluminum or mild steel panels. The x-weight backing stays stable while you vary pressure and angle to make repeatable patterns. Clear-coat to freeze the pattern and protect from oxidation; mount panels on standoffs for a gallery look.
Skateboard Deck Refurb
Strip old grip, smooth the deck surface, and round damaged edges. The 120-grit belt cuts old adhesive while avoiding deep scratches that show through new grip. Finish by sealing edges with thin CA glue for durability and applying fresh grip tape.
Fiberglass Repair Feathering
Feather cracked or blistered fiberglass on canoes, boards, or fairings before patching. The open-coat, resin-bonded belt sheds dust and resin, giving a consistent feather edge. After patch cure, use the same grit to level high spots prior to primer.