Description
3M Abr Adhesive 36241 6" 80 Grit | Boat Supply Store
This 3M abrasive disc is engineered for demanding marine surface preparation tasks. Featuring a robust 6-inch diameter and an aggressive 80-grit abrasive, it efficiently removes rust, paint, and coatings from fiberglass and metal substrates. Ideal for prepping hulls before antifouling application or for refurbishing metal components exposed to harsh saltwater environments on vessels like Bertram sportfishers.
Key Features
- Efficient 6-inch diameter for broad coverage
- Aggressive 80-grit abrasive for rapid material removal
- Durable construction for extended service life
- Versatile application for rust and paint stripping
- Substrate-specific performance on fiberglass and metal
- Consistent surface finishing
- Reduced heat buildup for safer operation
- High-strength bonding adhesive
Specifications
| Product Specifications | |
|---|---|
| Diameter | 6 inch |
| Grit | 80 |
| Grit Type | Aluminum Oxide |
| Attachment Type | Hook & Loop |
| Max RPM | 10,000 |
| Backing Material | Felt |
| Disc Type | Adhesive Back Disc |
Who This Is For
This 80-grit abrasive disc is designed for marine professionals and serious DIYers undertaking significant hull restoration or metal fabrication projects. It is suitable for boatyards and individuals who require efficient material removal for critical surface preparation steps.
How It Compares
| Feature | 3M Abr Adhesive 36241 6" 80 Grit | Norton |
|---|---|---|
| Diameter | 6 inch | 6 inch |
| Grit | 80 | 80 |
| Attachment Type | Hook & Loop | Hook & Loop |
Common Concerns Answered
Will this disc quickly clog on marine coatings?
The 3M 36241 disc is engineered with an open-coat construction, which significantly reduces loading and clogging when sanding through marine paints, epoxies, and resins, maintaining abrasive efficiency longer.
Is the 80-grit abrasive too coarse for finishing applications?
The 80-grit is ideal for initial material removal. For finer finishes, it should be followed by progressively finer grit discs, such as 120-grit and then 220-grit, to achieve a smooth surface suitable for painting or gelcoat application.
How durable is this disc for continuous use?
This disc features a heavy-duty felt backing and a high-strength adhesive, designed to withstand the rigors of continuous sanding operations on demanding marine surfaces without delaminating or prematurely degrading.
Frequently Asked Questions
What is the primary use case for an 80-grit abrasive disc on a boat?
An 80-grit disc is best for initial stock removal, such as stripping old antifouling paint, removing rust from metal components, or leveling rough repairs on fiberglass or wood substrates.
Can this disc be used for wet sanding?
This specific 3M abrasive disc is designed for dry sanding applications. Using it with water may compromise the adhesive bond and the performance of the abrasive grains.
What is the maximum safe operating speed for this 6-inch disc?
The maximum recommended operating speed for this 6-inch abrasive disc is 10,000 RPM. Always adhere to your tool's specified RPM limits and the disc's rating for safe operation.
What type of tool is this disc intended for?
This disc is designed for use with rotary sanders or orbital polishers equipped with a compatible hook and loop backing pad.
How many discs are included in this package?
The product description indicates '(50)' which means this package contains 50 abrasive discs.
