Matrix/Base : Kraft Paper
Abrasive/Grain : Silicon Carbide
Main Particle Size/Main Grit : 60#-2000#
Width : 230x280mm
Finished Form: Sheet
Our Silicon Carbide Waterproof Abrasive Paper, also called wet dry sandpaper, adopts high-hardness black silicon carbide mineral, premium latex waterproof paper backing and full resin waterproof bonding system with electrostatic grain coating technology. It supports both wet sanding and dry polishing, widely used for fine grinding, leveling and mirror finishing across automotive, metal, plastic, glass, stone and hardware industries. All grits from coarse rough cutting to ultra-fine mirror polishing are available, stable quality with factory direct wholesale & customizable OEM service.
Core Raw Material & Craft
Abrasive Grain: 100% sharp black silicon carbide (SiC), high hardness, self-sharpening feature — grains micro-fracture during sanding to expose new cutting edges, stable cutting power without dulling quickly
Backing Base: Heavy-duty waterproof latex kraft paper (C-weight), soft flexible, anti-tear, long-time soakable in water without deformation, cracking or delamination
Bonding Agent: Double-layer waterproof resin glue, strong grain adhesion, no sand grain shedding during heavy wet grinding
Coating Process: Electrostatic full close coating, even grain distribution, less clogging, consistent scratch texture on workpiece surface
Color: Standard black abrasive surface, brown printed backing with clear grit mark for easy identification
Key Competitive Advantages
Dual Wet & Dry Functionality Perfect for water-assisted sanding: water cools workpiece, washes away grinding debris, greatly reduces dust pollution, avoids surface overheating and paint melting; also works well for dry light polishing.
Excellent Waterproof Performance Entire paper sheet resistant to long water immersion, no glue failure, paper softness remains unchanged after repeated wet use, far better than ordinary dry sandpaper.
Fast Cutting & Ultra-Fine Finishing SiC mineral cuts faster than alumina abrasive on hard surfaces; uniform fine scratches, easy buffing to mirror gloss, ideal for automotive clear coat color sanding and precision polishing.
Long Service Life & Low Clogging Rate Dense electrostatic coating structure prevents paint, plastic and metal chips from embedding into grain gaps, extend service cycle and lower customer consumption cost.
Super Flexibility & Wide Compatibility Soft paper backing fits curved, irregular surfaces; compatible with hand sanding blocks, orbital sanders, small grinding machines.
Complete Grit Range & Custom Support Full grit series P60 ~ P5000 covers rough grinding, intermediate leveling, fine finishing and mirror polishing; support custom size, printed logo, color box packaging, mixed grit packing.
Factory Direct Supply & Stable Lead Time China professional abrasive factory, daily output over 100.000 sheets, strict QC inspection before shipment, CE qualified, competitive FOB factory price for bulk orders.
Complete Grit Application Guide
Coarse Grit P60–P240: Rough grinding, rust removal, paint stripping, wood/metal surface shaping
Medium Grit P320–P800: Primer leveling, putty smoothing, pre-paint surface preparation
Fine Grit P1000–P2000: Automotive intermediate color sanding, plastic scratch removal, glass fine grinding
Ultra-Fine Grit P2500–P5000: Mirror polishing for car clear coat, jade, marble, stainless steel, lens finishing
Wide Application Industries
Automotive Refinishing: Body putty sanding, primer & clear coat wet sanding, headlight restoration
Metal & Hardware: Stainless steel, aluminum alloy, copper deburring and surface polishing
Plastic & Resin: ABS, PVC, epoxy resin, acrylic polishing
Stone & Glass: Marble, granite, jade, optical glass fine grinding
Wood & Furniture: High-gloss furniture paint finishing
Electronics & Precision Parts: Small precision component surface smoothing
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