Greenfield Black Silicon Carbide Waterproof Sandpaper. Custom Logo & OEM/ODM: Accepts logo customization and supports OEM/ODM services for tailored branding. Wide Grit Range: Available in grit range P60-P3000 to meet various coarse to fine grinding needs. Free Sample Offer: Provides free samples for clients to test product quality before placing orders. High Water Resistance: Features good water resistance, suitable for wet sanding applications. Flexible Customization: Supports full, minor, and flexible customization from samples or designs. Fast Engineer Response: Offers quick technical support with engineer response within 24 hours. Quality Guarantee: Promises free reproduction for any quality problems found in products. Factory Direct Price: Products sold directly from factory ensuring competitive pricing and quality.