Gelva Achilles Black Silicon Carbide Waterproof Sandpaper. Silicon Carbide Material: Features high-performance Silicon Carbide abrasive for superior cutting and durability. Waterproof Design: Designed as waterproof sandpaper to prevent clogging and allow wet or dry sanding. Wide Grit Range: Available in P60 to P3000 grit range to suit various sanding needs from coarse to fine. OEM and ODM Acceptance: Factory accepts OEM and ODM customization for products, logos, and designs. Free Sample Offer: Free samples are available for customers to test product quality before ordering. ISO Certified Quality: Manufacturing processes are certified under ISO 9001 and ISO 14001 standards. Fast Response Support: Engineers provide quick responses within 24 hours for technical inquiries. Competitive Factory Price: Direct factory sales ensure high quality at competitive pricing for buyers.