STI SPIN-1 Concrete Polishing Pads
STI SPIN-1 Concrete Polishing Pads are diamond- and resin-coated natural-fiber burnisher pads engineered to polish new concrete to a clean, high-gloss finish in a fraction of the time required by traditional large polishing machines. Designed for use on high-speed propane or electric burnishers (1,000–3,000 RPM), these versatile pads can be run wet or dry and are ideal for polishing smooth, cured, steel-troweled concrete as well as restoring polished floors and buffing floor guard products.
The SPIN-1 System follows a five-grit progression (#1 through #5), moving from aggressive cutting to final buffing for a consistent, reflective finish. Each pad treats approximately 20,000 sq. ft., with periodic rinsing every 3,000 sq. ft. recommended for maximum life. For best results, SPIN-1 should be used on concrete that is at least 4,000 PSI, 28 days old, steel-troweled, and free of coatings or sealers. Always keep the burnisher moving during operation to prevent swirl marks or unwanted aggregate exposure.
Five-step polishing sequence
- #1 – Most aggressive
- #2 – Fine
- #3 – Super Fine
- #4 – Polish
- #5 – Buff
Sizes Available
Available in 21 in. (533 mm) and 27 in. (686 mm)
Main Features
- Diamond- and resin-coated natural-fiber polishing pads
- Designed for polishing new, smooth, steel-troweled concrete
- Produces a high-gloss finish faster than traditional large polishing machines
- Ideal for polish restoration and buffing floor guard products
- Compatible with high-speed propane or electric burnishers (1,000–3,000 RPM)
- Suitable for wet or dry applications
- Approximately 20,000 sq. ft. coverage per pad
- Rinse every 3,000 sq. ft. to maximize pad life
- Recommended for concrete with 4,000 PSI minimum strength, 28+ days of curing, and free of sealers or coatings
- Keep the burnisher moving during use to avoid swirl marks and aggregate exposure





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