3M™ Diamond Microfinishing Film Roll 675L, 20 Mic 5MIL, 8 in x 150 ft x 3 in (203.2mmx45.75m), Keyed Core, ASO, 1 ea/Case

$7,059.21 / Roll

SKU	7100225171
Legacy SKU	60440403099
UPC	00638060773758
Product Number	675L

Designed with a strong polyester film backing and sharp diamond mineral, the 3M Diamond Microfinishing Film Roll 675L delivers fine finishes on hard metals like thermal spray coating, ceramics, carbides, chilled iron and granite.

Micron-graded diamond mineral delivers close tolerance precision finishes for medium stock removal
Enables slow abrasive feed rates and fewer steps which reduces abrasive costs
Polyester film backing allows roll to be used dry or wet with surface lubricants
An exceptional roll for thermal spray finishing of contour / complex shapes
Color coded to reduce the risk of error and mixing up abrasive grades

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Durable

Superior Protection

Global Shipping

Industry Low Price

Product Dimensions	Imperial	Metric
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Shipping Dimensions
Weight	6.08696 lb
Length	7.4 in
Width	7.4 in
Height	8.8189 in

PRODUCT FAQ

What is the 3M™ Diamond Microfinishing Film Roll used for?

The 3M™ Diamond Microfinishing Film Roll is used to produce high-quality finishes on hard materials such as carbide, ceramics, and hardened metals.
What are the dimensions of this roll?

This particular roll measures 8 inches by 150 feet with a keyed core.
What is the grit size of this film?

The diamond abrasive in this microfinishing film has a grit size of 20 microns (roughly equivalent to about an P1200 sandpaper).
Q: How long will a single roll last during use?

A:The lifespan depends on your finishing needs but typically you should be able to get many parts finished before needing to replace it.
Q : Is there anything I need special tools or equipment for these rolls?

A : These films can be easily attached onto hand finishing pads or directly onto machine platens which makes them very versatile product that works for many different types customers applications.

For industrial/occupational use only. Not for consumer sale or use.

3M industrial and occupational products are intended, labeled, and packaged for sale to trained industrial and occupational customers for workplace use. Unless specifically stated otherwise on the applicable product packaging or literature, these products are not intended, labeled, or packaged for sale to or use by consumers (e.g., for home, personal, primary or secondary school, recreational/sporting, or other uses not described in the applicable product packaging or literature), and must be selected and used in compliance with applicable health and safety regulations and standards (e.g., U.S. OSHA, ANSI), as well as all product literature, user instructions, warnings, and other limitations, and the user must take any action required under any recall, field action, or other product use notice. Misuse of 3M industrial and occupational products may result in injury, sickness, death, or property damage. For help with product selection and use, consult your on-site safety professional, industrial hygienist, or other subject matter expert.

High-quality Materials for Micro-finishing

3M™ Diamond Microfinishing Film Roll 675L securely anchors micron-graded diamonds to a polyester film backing. The polyester film backing is known for its strength and resilience, which 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. This helps wash away unwanted swarf and debris and keeps the abrasive running cool. When used in roll form for a process like superfinishing, the 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, experts recommend following a unique sequence of steps tailored to the substrate. For example, a Ra of 2.5 to 5 on Tungsten Carbide 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.

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