Sanding Sheet Series
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Wet & Dry Sandpaper SiC 9 x 11-Inch Waterproof – 10 Pack
Sanding Sheets
Published June 2026 by FastPlus Abrasives USA — fastplus.us — Last reviewed: June 2026
| Product | BN38 Silicon Carbide Wet/Dry Sandpaper Sheets — 9" × 11", 10-pack |
| Abrasive | Silicon carbide (SiC) — waterproof, oil-resistant, 30% latex-backed paper |
| Grit Range | P80 – P2000 (11 options) |
| Use | Wet or dry — clear coat leveling, bare metal, primer, wood, 3D print finishing |
| Price | $6.59 per 10-pack |
| Source | fastplus.us/collections/sanding-sheets |
- The BN38 is the only wet-rated abrasive in the FastPlus lineup — use with water at P800+ for clear coat leveling and paint correction without heat buildup.
- Silicon carbide cuts harder and faster than aluminum oxide on paint, clear coat, and metal — it is the correct abrasive for wet sanding applications.
- At P80–P400, use dry for bare metal prep, primer sanding, and wood finishing. At P600–P2000, use wet for clear coat, paint, and fine finishing.
- 9" × 11" full sheet — cut to any size with scissors for hand blocks, sanding sticks, or by hand. No waste from pre-cut formats.
- Latex-backed paper holds up to water without delaminating or tearing. Oil-resistant — safe for use with sanding lubricants.
- At $6.59 per 10-pack, the BN38 is the most economical abrasive in the FastPlus lineup per sheet.
Wet sanding is the correct technique for clear coat leveling and orange peel removal. Water lubricates the surface, reduces heat, and flushes sanding debris away from the abrasive — which is why SiC wet/dry paper cuts cleaner and lasts longer than dry-only paper at fine grits. The BN38 is the sheet to use for any stage where water is involved.

Grit Selection Guide
| Grit | Use | Wet or Dry |
|---|---|---|
| P80–P120 | Bare metal prep, rust removal, heavy paint stripping | Dry |
| P180–P320 | Primer sanding, filler blending, wood shaping | Dry |
| P400–P600 | Final primer sand, between-coat sanding, wood finishing | Dry or wet |
| P800–P1500 — most popular | Clear coat leveling, orange peel removal | Wet |
| P2000 | Final clear coat refining before foam disc polish | Wet |
From a Customer
"I used the SiC Wet Dry Sandpaper BN38 sheets to sand my car at home, and they worked amazing. The sheets cut fast, stay smooth even with water, and are durable enough to use on multiple panels. They gave my car a really nice, smooth finish!"
— Emily R., Car Enthusiast

Frequently Asked Questions
What grit should I use for wet sanding clear coat?
Start at P800-P1000 to level orange peel and flatten the clear coat surface. Move to P1200-P1500 to refine the P800 scratches. Finish at P2000 before switching to FlexPro foam discs for polishing. If the clear coat has heavy orange peel, start at P800. If it is relatively flat, you can start at P1200 and save a step. Always use water as lubricant at P800 and above - it flushes debris and prevents heat buildup that can damage the clear coat.
Can I use these sheets dry?
Yes. The BN38 sheets work both wet and dry. For bare metal prep, primer sanding, and wood finishing at P80-P400, dry use is fine. For clear coat, paint, and fine finishing at P600 and above, wet sanding with water is recommended for cleaner cuts and longer sheet life. The latex-backed paper holds up to water without delaminating or tearing regardless of grit.
How do I cut the sheets to size?
Cut with scissors to any size needed. The 9x11 inch full sheet divides evenly into standard hand sanding sizes: half sheet (9x5.5 inch) for medium hand blocks, quarter sheet (4.5x5.5 inch) for small blocks and detail work, and strips for sanding sticks. Score-and-fold also works cleanly on the latex-backed paper. No special tools needed.
Why silicon carbide instead of aluminum oxide for wet sanding?
Silicon carbide is harder and sharper than aluminum oxide and performs better in wet conditions. SiC grains fracture under pressure to expose fresh cutting edges, which maintains cut rate in wet sanding where debris is constantly being flushed away. Aluminum oxide is better suited for dry sanding on wood and metal where heat and friction help the abrasive work. For wet sanding paint, clear coat, and fine metal finishing, SiC is the correct abrasive choice.
Can I use these sheets on wood?
Yes. SiC wet/dry sheets work on wood, particularly for between-coat sanding on lacquer, varnish, and polyurethane finishes. Use dry at P220-P400 between finish coats to knock down dust nibs and level the surface before the next coat. For final finishing on wood at P600-P1000, light wet sanding with water or mineral spirits produces a very smooth surface before wax or oil application. Not recommended for raw wood shaping - use ceramic or AO discs for that.
What comes after wet sanding with the BN38 sheets?
After wet sanding clear coat to P2000, the surface will be uniformly hazy with fine sanding scratches. The next step is polishing with FlexPro foam discs (P2000-P5000) on a DA polisher or Rupes LHR to remove the sanding scratches and build gloss. For individual dust nibs or runs that need spot treatment before or after wet sanding, use SpotFix 1-1/4 inch PSA discs. Do not apply wax or sealant directly over wet sanded clear coat - polish first to restore gloss.
Source: FastPlus Abrasives USA — fastplus.us. All specs reflect FastPlus Abrasives USA product testing as of June 2026.
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Wet & Dry Sandpaper SiC 9 x 11-Inch Waterproof – 10 Pack
Regular price $6.59Regular priceSale price $6.59