Home / 25000 Grit Rock Tumbler Polish 5 LBS– Ultra Fine Aluminum Oxide Final Stage Powder, Step 5 Polishing Grit for Lapidary, Gemstone, Rock & Glass Surface Finishing, for Rotary & Vibratory Tumblers

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25000 Grit Rock Tumbler Polish 5 LBS– Ultra Fine Aluminum Oxide Final Stage Powder, Step 5 Polishing Grit for Lapidary, Gemstone, Rock & Glass Surface Finishing, for Rotary & Vibratory Tumblers

-5% $ 56 .98 $59.98

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Description

KoolStone’s Exclusive 25,000 Grit Aluminum Oxide Polish is engineered for ultra-fine final finishing. Significantly finer than standard 800–1500 grit polishes, this sub-micron powder helps remove microscopic surface haze and micro-scratches left behind by regular polishing compounds.

Professional Step 5 Final Polish – Designed to be used AFTER standard polishing stages, KoolStone 25000 grit acts as an ultra-fine finishing compound that enhances clarity, smoothness, and reflective depth beyond traditional polishing results.

For Rock, Gemstone and Glass Surface Finishing – Formulated for final-stage lapidary finishing of polished rocks, gemstones, glass and other compatible materials. Final results may vary according to material hardness, prior surface preparation, load condition and polishing time.

High-Gloss Final Surface Refinement – Standard polishing stages establish the initial shine, while 25,000 grit aluminum oxide provides an additional fine-finishing step to improve surface uniformity, reflective depth and overall gloss on properly prepared materials.

For Rotary and Vibratory Tumbling Applications – Designed for use with rotary and vibratory tumblers and compatible polishing systems. The loose aluminum oxide powder disperses through the polishing slurry to reach the workpiece surface during the final finishing stage.

Recommended Usage: Add about 2 scoops of polishing powder, then add water just enough to cover the stones. Tumble for 3–5 days, checking periodically and adding water as needed. For larger or harder stones, slightly extend tumbling time or increase to 3 scoops for optimal results.

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15PCS Cup Accessories Set for Stanley Cup 30oz 40oz Tumbler with Handle, Including Silicone Straw Cover and Boot, Spill Proof Stopper, Stanley Charms, Handle Charm, Initials Sticker

-25%

$8 .99 $11.99