High-quality Materials for Micro-finishing
3M™ Diamond Microfinishing Film Belt 675L securely anchors micron-graded diamonds to a polyester film backing. Polyester film backings are water resistant, so the abrasive may be run with a water or oil-based lubricant, which helps wash away unwanted swarf and debris and keeps the abrasive running cool. The belts are also color coded by grade to help you reduce the risk of selecting the wrong grade.
Tips for Achieving Desired Roughness Average
Many Micro-finished products require a specific Ra, or roughness average, when applying to thermal spray coatings, carbides, ceramics, exotic alloys, or other composites. It is important for operators to consider these factors – Ra and substrate – when selecting the grade of film for this belt.

Dynabrade 91090 2" Dia. x 1" W, 120 Grit, Z/A DynaCut Band, 10/pack
3M 21463, Marine Adhesive Sealant 5200, White, 5 Gallon Drum (Pail), 7010325698
3M 05205, Marine Adhesive Sealant 5200, Black, 3 oz Tube, 7000118402, 6/Case
ACS Diamond Cloth Belt, CX1250 3" X 90" 75U
3M 21543, Scotch-Brite Roloc Clean and Strip XT Pro Extra Cut Disc, TR, 2 in x NH, A XCS, 7100179815, 60/box
3M 20910, PSA Cloth Disc 348D, 60 X-weight, 2 in x NH, Die 200P, 7000118872
3M 08505, Fast 'N Firm Seam Sealer, 1/10 gal Cartridge, 7000045495, 12 per case
3M 40192, Cloth Spiral Band 341D, 60 X-weight, 2 in x 1 in, 7100138152
3M 50023, Venture Tape UL181B-FX Mastik Foil Tape 1580-P, Silver, 1581A, 2 in x 100 ft, 7010337393
3M 26710, PPS Series 2.0 Spray Cup System UV Kit, Standard (22 fl oz,
650 mL), 200 Micron Filter, 7100128902 
