Jx Jenex Black Silicon Carbide Waterproof Sandpaper. Silicon Carbide Material: High-performance abrasive made from silicon carbide for superior cutting. Waterproof Design: Water sandpaper designed for wet sanding applications with good water resistance. Wide Grit Range: Available in grits from P60 to P3000 to suit various finishing needs. OEM and ODM Services: Factory accepts customization from samples, designs, and offers full customization. ISO Certified Quality: Manufacturing processes certified under ISO 9001 and ISO 14001 standards. Fast Response Support: Engineers available for quick response within 24 hours for technical issues. Free Sample Offer: Samples are available for free to help customers evaluate product quality. Competitive Factory Price: Direct sales from factory ensure competitive pricing and quality assurance.