Johnson Gold Black Silicon Carbide Waterproof Sandpaper. Customizable Grit Range: Grit range available from P60 to P3000 to suit various grinding needs. OEM and ODM Accepted: We accept OEM and ODM customization for product names and designs. Free Sample Offer: Free samples are available for customers to test product quality. High Water Resistance: Silicon carbide abrasive with good water resistance for wet sanding. 30+ Years Expertise: Over 30 years dedicated to advanced abrasives R&D and production. ISO Certified Quality: ISO 9001 & 14001 certified processes ensuring high quality standards. Fast Engineer Response: Quick response with engineers available within 24 hours for support. Free Reproduction for Defects: Any quality problems will be reproduced for free by our promise.