3M™ EXL Unitized Debur and Finishing Wheels and Blocks, 4A FIN and 6A FIN are abrasive products produced by 3M Company. The main ingredients are aluminum oxide mineral, cured resin mixture, nylon fiber, polyester scrim, filler and silicone coated release liner.
This Material Safety Data Sheet describes the 3M EXL Unitized Debur and Finishing Wheels and Blocks (4A FIN and 6A FIN), an abrasive product intended for industrial use. It lists the product’s composition, physical properties, and the hazards associated with dust and particles generated during sanding, grinding, or machining.
Key sections cover first‑aid measures, recommended personal protective equipment (eye/face protection, gloves, respirators), safe handling and storage practices, fire‑fighting guidance, disposal options, and transport and regulatory classifications. The sheet also provides exposure limits for individual ingredients and references to applicable OSHA, ACGIH, and other standards.
| Cured Resin Mixture (by weight) | 15‑35 % |
|---|---|
| Physical form | Solid abrasive product |
| Autoignition temperature | Not applicable |
| Flash point | Not applicable |
Wear safety glasses with side shields, appropriate gloves, and a NIOSH‑approved respirator (half‑face or full‑face with N95 filters).
Store the wheels in a cool, dry place.
Flush the eyes with large amounts of water and seek medical attention if symptoms persist.
No, the material is not flammable; flammable limits are listed as not applicable.