3M™ Diamond Microfinishing Film Roll 669L
The 3M™ Diamond Microfinishing Film Roll 669L uses micron-graded diamond mineral on a strong polyester backing to deliver precision finishes on hard metals and coatings. It supports slow abrasive feed rates and fewer finishing steps, reducing abrasive costs. Waterproof and color-coded for grade identification, it is ideal for thermal spray finishing and complex shapes, offering durability and accuracy in demanding microfinishing operations.
3M™ Diamond Microfinishing Film Roll 669L Features:
- Micron-graded diamond mineral for precision finishing.
- 4 mil polyester film backing for strength and stability.
- Water-resistant for wet or dry use.
- Color-coded grades to prevent selection errors.
- Reduces process steps and abrasive costs.
3M™ Diamond Microfinishing Film Roll 669L Applications:
- Thermal spray coating finishing.
- Superfinishing carbides and ceramics.
- Polishing chilled iron and granite.
- Precision Ra control for industrial components.
About Prostech
Prostech offers specialty materials (adhesives, tapes, thermal interface materials, insulating materials, sealants, PCB protection materials, …) along with manufacturing solutions. We proudly serve a wide range of industries and are an authorized distributor for leading global manufacturers of industrial materials and equipment. Our product range is designed to deliver customized solutions that address each customer’s unique needs.
With years of experience and a successful project history, we are confident in our ability to provide comprehensive material solutions. These solutions effectively tackle the challenges manufacturers face. To explore our full product catalog, simply click here. Our dedicated team is ready to assist with:
- Provide quotation, sample, TDS/MSDS, and technical consultation
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Moreover, Prostech ensures the safe and accurate global delivery of all materials, including “dangerous goods”, in compliance with legal regulations. For personalized technical support or to receive a quotation, please contact us today.
| Property | Value |
|---|---|
| Abrasive Material | Diamond |
| Application | Finishing, Surface Finishing, Aerospace, Automotive, Coating Removal, Fine Finishing |
| Backing Material | Polyester Film |
| Backing Thickness (Imperial) | 4 mil |
| Bond Type | Resin |
| Brands | 3M |
| Coat Type | Open Coat |
| Equipment – Machines | Microfinishing Machines |
| Industries | AOEM, Aerospace, Primary Metal |
| Micron Grade | 15 μm, 30 μm, 45 μm, 60 μm |
| Product Color | Dark Gray |
| Product Form | Roll |
| Sub Applications | Coating Finish Prep/Repair, Coating Removal, Fine Finishing, Finishing |
| Sub Industries | Turbine Engines, Plating & Polishing, Aerospace, Automotive, Coating Sanding |
| Vacuum Support | No |
| Wet or Dry | Wet |
