File Belts 3M AM39095 Microfinishing Film Belt 372L Grade 40 Micron 1 in x 30 in 7000139095 - The Sandpaper People

3M AM39095
Microfinishing Film Belt 372L Grade 40 Micron 1 in x 30 in 7000139095

by 3M

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3M Microfinishing Film Belt, 372L, grade 40 micron, 1 in x 30 in

  • The 3M? Microfinishing Film Belt 372L is designed to help you get the finest finish possible, and is available in a wide variety of forms
  • It features micron-graded aluminum oxide abrasive bonded to a durable polyester film backing to produce a fast cut-rate and a uniform finish on composites, plastic, fibreglass, and metal.
  • Part # 7000139095
    Sold in qty's of 200
    Backing Film
    Grit 40
    Length 30 Inch
    Width 1 Inch
    Material 372L
    Micron 40
    Abrasive grain Aluminum Oxide
    Country of origin United States
    Product type File Belts

    Anything extra you need to know

  • The 3M? Microfinishing Film Belt 372L is manufactured with a closed coat abrasive surface to increase efficiency and produce a finer finish
  • To complement the effective abrasive action, the polyester film backing flexes to help achieve a consistent finish over contours and offers greater tear-resistance than comparable paper products, making it ideal for high-production environments
  • This film comes in a range of micron grades for complete multi-step sanding and finishing
  • The 3M? Microfinishing Film Belt 372L features precision, micron-graded aluminum oxide, which is a popular choice among industrial professionals because of its fast cut-rate and fine finish
  • This mineral makes a tough, durable abrasive that self-fractures to expose fresh cutting edges
  • Due to its fast cut-rate, hardness, and strength, it is widely used for sanding and finishing applications
  • The 3M? Microfinishing Film Belt 372L uses a resin bond which is designed to resist thermal and chemical deterioration, which can occur during sanding
  • This bond is very tough and is an excellent option for precision work on hard and soft surfaces
  • This also allows for faster sanding and a higher cut rate
  • The closed-coat construction of the belt means mineral grains cover 100% of the backing, so the abrasive scratches all of the surface that it comes in contact with
  • It's commonly used on surfaces where loading is less of a problem, making it a good match for hard metals.
  • What makes this product special

  • Micron-graded aluminum oxide abrasive cuts fast and provides a consistent, fine finish
  • Durable polyester film backing provides flexibility for consistent finishing
  • Resin bonding resists deterioration from heat, extending the life of the abrasive belt
  • Closed coat construction provides good grain density and helps deliver a finer finish
  • We suggest you should use it for:

  • Helps to provide precision finishing of cylindrical surfaces such as automotive camshafts and crankshafts