Alfa Mirage® PVA POINT

The elastic, sponge-structure rotary point for flawless, heat-free precious metal finishing. Traditional dense rubber or silicone polishing wheels generate significant friction heat at high RPMs, which can warp thin fabrications, drag soft metals, and burn the operator's fingers. Manufactured in Japan, the Alfa Mirage® PVA POINT solves this through advanced material science. Formulated from Polyvinyl Alcohol, these mounted cylinders feature a unique micro-sponge structure. This provides the elasticity needed to conform to metal without leaving chatter marks, while actively dissipating heat to ensure a smooth, scratch-free mirror finish on Silver, Gold, and Platinum.

Advantages

• PVA Sponge Structure: The porous nature of Polyvinyl Alcohol absorbs shock and vibration. Instead of aggressively gouging the metal like a hard grinding stone, the PVA matrix yields slightly, resulting in an exceptionally smooth, uniform surface finish.

• Zero Heat Generation: The absolute best choice for heat-sensitive work. The breathable structure prevents heat buildup during high-speed rotation, making it completely safe for thin bezels, delicate prong work, and highly conductive Sterling Silver.

• Silver & Platinum Mastery: Specifically noted in the Japanese jewelry trade for its superior performance on Sterling Silver. It smoothly transitions the metal from a mid-level prep to a final, liquid-like mirror shine without surface dragging.

• Integrated Shank: Unlike unmounted wheels that require separate hardware, these cylinders come permanently mounted on a precision steel shank, ready to drop directly into your micromotor or flex-shaft collet.

The PVA Grit Progression

Available in a comprehensive range of strictly calibrated grits to take your piece from rough casting to final polish:

• Rough/Medium Cut: #120, #220, #320, #400 (Ideal for initial leveling and removing casting skin).

• Fine Pre-Polish: #600, #800, #1000 (Perfect for removing deep scratches and establishing a satin finish).

• Ultra-Fine Finish: #1500 & Green (The final step for coloring the metal and drawing out a flawless mirror luster).