Hippo P80 Black Silicon Carbide Waterproof Sandpaper. Silicon Carbide Material: Made with high-quality silicon carbide for superior cutting and durability. Waterproof Design: Water-resistant construction suitable for wet sanding applications. Wide Grit Range: Available in grits from P60 to P3000 to meet various finishing needs. OEM and ODM Services: Accepts customization from samples, designs, and full customization options. Free Sample Offer: Samples are available for free to help customers evaluate product quality. 30+ Years Expertise: Over three decades of experience in advanced abrasives R&D and production. ISO Certified Quality: Manufacturing processes certified under ISO 9001 and ISO 14001 standards. Fast Response Support: Engineers provide quick responses within 24 hours for technical inquiries.