• 3M™ Microfinishing Film Roll 675L Gray/Yellow 101mm x 15.24m 45 Micron
  • 3M™ Microfinishing Film Roll 675L Gray/Yellow 101mm x 15.24m 45 Micron

    3M ID 60440124844
    • Achieve finish requirements faster, with fewer passes and faster traverse rates than other alternatives
    • Reduces abrasive costs - 675L enables slow abrasive feed rates and fewer steps
    • Helps improve productivity and reduce the cost of superfinishing of hard materials
    • 60 inch infeed and outfeed leaders
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    Specifications
    Attribute Name
    Value
    Backing Material
    Polyester film
    Bonding Type
    Resin
    Brand
    3M™
    Core Size (metric)
    76,2 Millimetre
    Hole Configuration
    Plain
    Industries
    Aerospace, General Industrial, Precision Grinding & Finishing, Transportation & Heavy Equipment
    Micron Grade
    45 μm
    Mineral Type
    Diamond
    Primary Application
    Metalworking
    Product Form
    Roll
    Product Details
    • Achieve finish requirements faster, with fewer passes and faster traverse rates than other alternatives
    • Reduces abrasive costs - 675L enables slow abrasive feed rates and fewer steps
    • Helps improve productivity and reduce the cost of superfinishing of hard materials
    • 60 inch infeed and outfeed leaders
    • Color coded to reduce the risk of error and mixing up abrasive grades

    Diamond mineral bonded to a polyester film backing. Designed for superfinishing and fast finish reduction on hard materials including thermal spray coatings, ceramics, carbides, chilled iron, granite and others.

    High-quality Materials for Micro-finishing
    3M™ Diamond Microfinishing Film Roll 675L securely anchors micron-graded diamonds to a polyester film backing. Known for its strength and resilience, the polyester film backing keeps the abrasive from skidding or deflecting when run. This backing helps the superabrasive belt stay taut and tough so that it can withstand heavy-duty finishing. The belts are also color coded by grade to help you reduce the risk of selecting the wrong grade.

    Waterproof Backing
    Polyester film backings are also water resistant, so the abrasive may be run with a wet surface lubricant, which helps wash away unwanted swarf and debris and keeps the abrasive running cool. When used in roll form for a process like superfinishing, our 675L roll enables slow abrasive feed rates and requires fewer steps, because of its durability, which in turn can reduce costs.

    Tips for Achieving Desired Roughness Average
    Many micro-finished products require a specific Ra, or roughness average. To obtain the desired Ra when applying thermal spray coatings, we recommend following a unique sequence of steps tailored to the substrate. A Ra of 2.5 to 5 on Tungsten Carbide, for example, will likely require a film with grade 74u followed by films 45u, 30u and 20u. It is important for operators to consider these factors – Ra and substrate – when selecting the grade of film for this belt.
    Overall, this micron-graded diamond abrasive delivers the desired finish without compromising the integrity of the substrate. Its strength and versatility make it a suitable abrasive for your finishing needs.