Product Introduction
The 3M™ Microfinishing Film Belt 372L features micron-graded aluminum oxide on a durable polyester film backing for precision finishing on composites, plastic, fiberglass, and metal. It offers a fast cut-rate, consistent fine finish, and flexibility for contour sanding.
3M™ Microfinishing Film Belt 372L Features:
- Micron-graded aluminum oxide for fine, consistent finishes
- Flexible polyester film backing resists tearing
- Resin bonding resists heat deterioration
- Closed-coat construction for increased grain density
- Available in multiple micron grades for multi-step finishing
3M™ Microfinishing Film Belt 372L Applications:
- Precision finishing in high-production environments
- Sanding and polishing metals, plastics, and composites
- Contour finishing without compromising surface uniformity
- Fine finishing in aerospace, automotive, and industrial manufacturing
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
- Testing sample quality and verifying product compatibility in our laboratory
- Customizing material formulas for special applications
- Adapting product sizes, quantities, and packaging to meet specific needs
- Offering expert advice on suitable equipment and automation processes
- Delivering technical training and on-site support for optimal product use
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 | Aluminum Oxide |
| Application | Polishing, Finishing |
| Backing Material | Polyester Film |
| Backing Thickness (Imperial) | 5 mil |
| Brands | 3M |
| Coat Type | Closed Coat |
| Equipment – Machines | Wide Belt Sanders, Centerless Grinders, Manual Backstand, Superfinishing Machines, Cylindrical Grinders, Microfinishing Machines |
| Industries | Primary Metal, AOEM, Aerospace, Composite, General Industrial, Transportation & Heavy Equipment, Precision Grinding & Finishing |
| Micron Grade | 9 μm, 15 μm, 20 μm, 30 μm, 40 μm, 50 μm, 60 μm, 80 μm, 100 μm |
| Product Color | Green, Black, Purple, Orange, Light Blue, Red, Blue |
| Product Form | Belt |
| Sub Applications | Powertrain Microfinishing, Plate Polishing, Superfinishing |
| Overall Length (Imperial) | 36 in, 54 in, 72 in, 84 in, 132 in |
| Overall Length (Metric) | 914.4 mm, 1371.6 mm, 1828.8 mm, 2133.6 mm, 3352.8 mm |
| Overall Width (Imperial) | 2 in, 3 in, 4 in |
| Overall Width (Metric) | 50.8 mm, 76.2 mm, 101.6 mm |
