3M Cubitron™ II Marine Sanding Disc
Free returns on all eligible orders
You have 30 days to request a return. All sale items are final sale.
Get fast, consistent sanding performance for marine coating prep and repairs with the 3M Cubitron™ II Marine Sanding Disc. Designed with a Hookit™ attachment system and a multi-hole pattern for effective dust extraction, it’s suited for work like bottom paint removal and gelcoat/blister repair.
Key Features
- Triangular ceramic mineral grain is engineered for fast cutting and long-lasting performance
- Hole pattern helps improve dust extraction by allowing airflow/vacuum to reach the disc surface
- Hookit™ hook-and-loop attachment system helps support quick disc change-outs
- Ideal for marine coating removal and repair sanding tasks, including bottom paint removal, gelcoat repair, and blister repair
Intended Use
- Bottom paint removal
- Gelcoat repair sanding
- Blister repair sanding
- Marine coating surface prep (general sanding)
Product Details
- Product Title (preserved): 3M Cubitron™ II Marine Sanding Disc
- SKU: 71-31370
- Grade (from supported product data): 40+
- Disc size: 6 in (150 mm)
- Attachment system: Hookit™ (hook-and-loop)
- Dust extraction: multi-hole pattern
- Quantity/pack details (from supported product data): 25 discs per carton
- Barcode/UPC: 51131313705
- Variant weight: 2268 GRAMS
Parts Desk Insights
Best Use Case: Use this disc for marine sanding where you want efficient cut rates and cleaner operation from dust extraction—especially during bottom paint removal and coating/gelcoat surface prep.
Common Issues: For best results, ensure the disc matches your sander’s pad size and Hookit™ attachment system. If sanding performance drops, verify the disc grade is appropriate for the stage of work and check that dust collection is connected and unobstructed for effective particulate removal.
Related Products & Accessories
- Tools & Installation - Browse sanding, prep, and installation accessories that pair with Hookit™-style abrasive discs.
Shipping information
In-stock and OEM parts: ship same or next business day.
Locally warehoused items: ship within 1-3 business days.
Special-order items: timeline confirmed after order.
Returns & warranty
Returns & Satisfaction Guarantee
We stand firmly behind the quality of every product we sell. Your confidence matters to us — and we back it with a straightforward 30-Day Satisfaction Guarantee.
If you are not fully satisfied, you may request a return within 30 days of delivery. All returns must receive pre-approval prior to being sent back. Unauthorized returns will not be accepted.
To qualify for a return:
Item must be in new, unused condition
Product must be in its original packaging
All parts, components, hardware, manuals, and accessories must be included
Packaging must be undamaged and suitable for resale
Important:
Electronics are strictly inspected. No returns on open-box electronics. Exceptions may apply only with prior written approval. Any electronic unit that has been installed, powered, activated, or altered may not be eligible for return.
We are serious about product integrity — and equally serious about taking care of our customers. If there is ever a product issue, contact us immediately so we can make it right.
For return authorization, please contact our support team before shipping anything back.