4" x 36" Sanding Belts

Premium 4" x 36" Sanding Belts for Professional Results

When you need reliable sanding belts that deliver consistent performance across a variety of applications, Benchmark Abrasives has you covered. Our 4 x 36 sanding belts are engineered for both professional workshops and home improvement projects, offering the durability and precision you demand from your power tools.

4" x 36" Sanding Belts Available at Benchmark Abrasives

• Width: 4"
• Length: 36"
• Grits: 24, 36, 40, 50, 60, 80, 100, 120, 150, 180, 220, 240, 320, 400
• Grain Options: Aluminum Oxide, Zirconia and Ceramic
• Backing: X-weight polycotton cloth
• Joint: Butt joint
• Coat: Closed Coat

Tool Compatibility: Belt & Disc Sander Combination machines, Benchstand Grinders, Portable Belt Sanders, Backstand Belt Grinders, 4" x 36" belt sanders and Knife Belt Sanders

Quality That Outperforms the Competition

Our abrasive belts are manufactured in the USA with premium materials that outperform competitors. Whether you're working with aluminum, stainless steel, carbon steel, cast iron, or other ferrous metals, our heavy duty construction ensures longer life and consistent results. Plus, we offer free shipping on qualifying orders and exceptional customer service that sets us apart from big box retailers.

Guide For What Sanding Belt Material to Choose for Your 4" x 36" Belt

Aluminum Oxide Sanding Belt

Our premium aluminum oxide belts are the workhorse of general purpose sanding. The aluminum oxide belt construction provides excellent value and versatility, making it perfect for woodworking projects and light metalwork. These belts feature X-weight cloth backing material for flexibility and durability.

Best for: Wood, painted surfaces, general metalwork, and everyday shop tasks

Zirconia Alumina Belt

When you need extra cutting power and longer life, our zirconia belt options deliver superior performance. Zirconia alumina grains stay sharp longer under heavy pressure, making them ideal for aggressive material removal on harder surfaces.

Best for: Stainless steel, harder metals, heavy stock removal, and demanding industrial applications

Ceramic Sanding Belt

Our ceramic sanding belts feature premium ceramic grains that provide the longest sanding life and fastest cut rates. These premium belts are engineered with bi-directional tape joint construction for maximum strength and grinding aid additives for cooler cutting.

Best for: High-production environments, hardened steels, and applications requiring maximum belt life

Versatile Applications

The 4x36 format works perfectly with disc sander combinations and portable belt sander setups. Whether you're smoothing wrought iron railings, preparing surfaces for finishing, or tackling woodworking projects, these sanding belts adapt to your needs. Professional contractors rely on them for building materials preparation, while home improvement enthusiasts appreciate their consistent performance on everything from furniture restoration to metal fabrication.

Our belts excel in both hand tools and belt sanding machines, giving you the flexibility to move between different sanding applications without compromising quality. The variety of grits available means you can complete entire projects from rough shaping to final finishing with belts from the same trusted source.

What Grit Do I Need?

Choosing the right grit depends on your specific task and material:

• Coarse Grits (24-50): Perfect for heavy material removal, paint stripping, and initial shaping. These aggressive grits quickly remove stock and prepare surfaces for finer work.
  
  
• Medium Grits (60-100): Ideal for general sanding, smoothing rough surfaces, and preparing for finish coats. The popular 100 grit provides excellent balance between cutting power and surface smoothness.
  
  
• Fine Grits (120-240): Great for finish sanding, removing scratches from previous grits, and preparing surfaces for stain or paint. These finer grits create smooth, even surfaces.
  
  
• Extra Fine Grits (320-400): Used for final finishing, between-coat sanding, and achieving ultra-smooth surfaces on detailed work.

Start with coarser grits for initial work, then progress through finer grits for best results. This progressive approach ensures optimal surface preparation and professional-quality finishes.