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.
3M Cubitron™ II Marine Sanding Disc delivers fast, long-lasting cutting with a fine, uniform finish—built for marine surface prep tasks like bottom paint removal, gelcoat repair, and blister repair.
Key Features
- Triangular shaped ceramic grain for fast cutting performance
- Multi-hole pattern helps evacuate dust for cleaner sanding and improved visibility
- Hookit™ hook-and-loop attachment system for convenient disc changes
- Cutting edges stay continually exposed as the disc wears for longer life
- Designed to help produce a finer, more uniform finish
Intended Use
- Bottom paint removal
- Gelcoat repair
- Blister repair
- General marine surface preparation and sanding prior to coatings/repairs
Product Details
- SKU: 71-31481
- Brand: 3M
- Product type: sanding abrasive disc
- Disc features include: triangular shaped ceramic mineral grain, multi-hole dust extraction pattern, and Hookit™ attachment system
- Variant barcode/identifier (as provided): 51131313811
- Net weight (as provided): 1301 grams
Parts Desk Insights
Best Use Case: Ideal for sanding applications where effective dust extraction and consistent finish quality matter—such as prepping areas for marine coatings or refinishing after repairs.
Common Issues: For best dust control, ensure your sander’s vacuum shroud and hose connection are secure and that the disc sits flat on the pad. If dust extraction seems reduced, check for disc misalignment, loaded abrasives, or a clogged extraction port.
Related Products & Accessories
- Tools & Installation - Browse sanding tools and attachment accessories used with abrasive discs.
- Anti-Corrosion Coatings - Explore coatings and related supplies for marine bottom paint and repair workflows.
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.