This blue sponge sand features an upgraded dense pinhole structure with excellent air circulation and dust permeability. It effectively prevents clogging during polishing, maintains stable and long-lasting grinding performance, and greatly extends the service life of the abrasive surface. Made of high-elastic flexible sponge material, it is soft and highly fitable. It perfectly fits flat, curved and irregular surfaces, delivering uniform and gentle grinding force. It will not leave scratches or grinding marks, ensuring a smooth and delicate finish on paint, wood, metal, models and other workpieces. In terms of performance, this product is comparable to 3M pinhole flexible sponge sand. Its core indicators such as wear resistance, flexibility and anti-clogging performance reach more than 90% of imported products. It fully meets the needs of industrial polishing, home renovation, manual DIY and other scenarios. With only half the price of imported counterparts, it provides ultra-high cost performance and is an ideal substitute for high-end imported sponge sand.

If you want, I can also make a shorter commercial version or a more technical specification version for your catalog.

• 1. Anti-clog & Durable: Adopts dense and uniform pinhole structure with great ventilation and dust discharge, avoiding powder clogging during polishing, maintaining stable grinding efficiency and prolonging service life.
• 2. Superior Polishing Effect: Made of high-elastic flexible sponge, it closely fits flat, curved and special-shaped surfaces. It delivers uniform and delicate grinding without scratching workpieces, leaving smooth and flawless finishes.
• 3. High Cost Performance: It achieves over 90% of the comprehensive performance of imported 3M pinhole sponge sand, while only costing half the price, serving as an ideal cost-effective alternative for industrial, home and DIY polishing scenarios.