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Black Diamond 400 Grit Red Concrete & Natural Stone Floor Prep Pads (Rectangular) - Case of 2

Original price $157.99 - Original price $285.99
Original price
$157.99 - $285.99
Current price $157.99
Special Order ItemExpected to ship in 1 – 3 wks
2 Pads per Case
Quantity Discounts
5% off
10% off
15% off

Product Description

These rectangular Black Diamond 400 grit red pads are made for heavy-duty cleaning which makes them perfect for worn concrete floors. This pad will leave a nice matte floor while effectively removing scratches and stains. Follow up this pad with the 800 grit white, 1500 grit yellow, and 3000 grit green Black Diamond pads to create a high gloss finish that will amaze everyone that walks on it. Due to the extreme abrasiveness of the red pad, the pad should only be used with water during prepping.

Black Diamond pads are made to reduce waste and save you money while cleaning and polishing your floors. These pads require no chemicals to use and feature a life span of three times that of a traditional pad. This can end results in savings of up to 66%. The pads are versatile and can be used on polished concrete, terrazzo, marble, vinyl, rubber, and many more types of floors.

Black Diamond pads are built with billions of microscopic diamonds to clean and polish floors simultaneously. No chemicals are required during cleaning and the pads should be used with water depending on the pad and the speed of the machine. The pads are made to mechanically densify your floor to produce resistance to dirt and wear. They also produce slip resistance that will create a safer floor for your workers or customers to walk on.

Using Black Diamond pads requires no additional equipment and can be used with the right-sized floor buffer or floor scrubber. If you own a round buffer or scrubber, look to our round Black Diamond red pads. For a complete rundown of when to use each specific pad, please view our Black Diamond Pad Guide.


  • No chemicals are needed, scrubbing should be used with water only.
  • Built with billions of microscopic diamonds that clean and polish the floor, all at the same time.
  • 400 grit red pads effectively remove scratches & stains, leaving a clean, matte surface.
  • Pads fit current machines on the market without the need for new equipment.
  • When performing daily maintenance at low speeds, Black Diamond Pads cover +/- 500,000 ft² of flooring per pad.
  • Pads should only be used colored side down only and should be replaced when the backing starts to show through.

Pad Characteristics

Pad Life Estimates
Pad Life Estimate
Black Diamond Pads at Low Speed
Size Square Feet Per Pad
6.5 inch 81,250 ft²
10 inch 125,000 ft²
12 inch 150,000 ft²
13 inch 162,500 ft²
14 inch 175,000 ft²
15 inch 187,500 ft²
16 inch 200,000 ft²
17 inch 212,500 ft²
18 inch 225,000 ft²
20 inch 250,000 ft²
21 inch 262,500 ft²
24 inch 300,000 ft²
27 inch 337,500 ft²
28 inch 350,000 ft²
For a complete rundown of estimates for different pad type and sizes,
please view our Floor Pad Life Expectancy Estimates page.

Quick Overview

  • Available in 12"x18", 14"x20", 14"x28" & 14"x32" sizes
  • 2 - 400 grit rectangular pads per case

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Black Diamond Polishing Pads

Product Information + Specs

Manufacturer Sku
Brush/Pad Shape
Country of Manufacture
United States
Product Type
Floor Pads, Bonnets & Sanding Screens

Safety, Warranty + User Manuals

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