SKU | 7000045314 |
---|---|
Legacy SKU | 60440260804 |
UPC | 00051141205731 |
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
Product Dimensions |
Imperial | Metric |
Weight | 1.50576 lbs | |
---|---|---|
Width | 6.8 in | |
Length | 6.8 in | |
Height | 4 in |
Shipping Dimensions |
|
Weight | 6.69323 lb |
---|---|
Length | 14.01575 in |
Width | 14.01575 in |
Height | 4.80315 in |
Color | Teal |
---|
PRODUCT FAQ
-
What is the 3M™ Diamond Microfinishing Film Roll 675L?
The 3M™ Diamond Microfinishing Film Roll 675L is a high-quality abrasive film that utilizes diamond mineral. It's designed for grinding, polishing and finishing applications on hard-to-grind materials such as ceramics, carbides and glass.
-
What are the dimensions of this roll?
The dimensions of this specific roll are 4 in x 50 ft x 3 in (101.6mmx15.25m).
-
Can you explain what "74 Mic" means?
"74 Mic" refers to the size of the diamond particles used in the film. Mic stands for microns which is a unit of measure equivalent to one thousandth of a millimeter.
-
How many cases does this come in?
This item comes with four rolls per case.
-
What is "ASO"?
: ASO stands for A-weighted Special Order and indicates that there may be minimum order requirements associated with the purchase of this product variant from our authorized distributors or retailers. However, please check further details with your local distributor / retailer when making an enquiry regarding special order items like these
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 BackingPolyester 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 AverageMany 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.