Boride BSD Resin 3" 400 Grit Dry

About this product

• A 3-inch dry resin polishing pad engineered for the early polishing steps on concrete and terrazzo floors, with 400 grit establishing the initial sheen by removing the scratch pattern left behind by the transitional or 100 grit pass and setting the foundation for the finer polishing steps that follow.
• Designed for dry use only and compatible with small, medium, and large planetary and rotary machines — with Velcro mounting for fast, tool-free attachment and the option to add applicable adaptors for smaller footprint machines — making it a flexible fit across a wide range of job site setups.
• Manufactured in the USA by Boride Engineered Abrasives in Traverse City, Michigan, using the same Blue Star Diamond Technology that makes the BSD product line known throughout the industry for consistent scratch patterns, long tool life, and dependable performance across soft, medium, and hard concrete.
• Each 3-inch pad delivers an expected lifespan of 6,000 to 8,000 square feet, providing reliable, cost-effective coverage per pad and reducing the frequency of tooling changes during large commercial polishing projects.
• Sits precisely within the established BSD polishing sequence — leading into the 800 grit step and onward to the 1500 and 3000 grit passes — allowing contractors to work through a clearly structured progression that builds steadily toward a high-gloss, professionally finished concrete floor.