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- Micro-Mesh® LiteratureMicro-Mesh Regular - Description of Micro-Mesh Regular Micro-Mesh MX - Description of Micro-Mesh MX for Metal Finishing Benefits of Micro-Mesh - What Makes Micro-Mesh So Special Ergonomic Benefits of Micro-Mesh - Human Factors, Engineering and Micro-Mesh TufBuf Polishing Pads - Polishing and Buffing Pads Guidelines for Acrylic Finishing Guideline for Making Belts with Micro-Mesh Micro-Gloss Instructions Metal Finishing with Micro-Mesh Random Orbital sanding with Micro-Mesh Solid Surface Finishing with Micro-Mesh Urethane Coating rectification Procedures Wood Finishing Procedures with Micro-Mesh Micro-Mesh Grit Size Conversion Chart Aquarium Restorer Kit Instructions Belt Finishing with Micro-Mesh Burn Kit Instructions Clear Seas Acrylic Kit Instructions Clear Seas Vinyl Kit Instructions Craft Kit Instructions Heavy Damage Removal Kit Instructions Light Damage Removal Kit Instructions KR-70 Acrylic Restoration Kit Instructions Maintenance Kit Instructions Micro-Mesh Anti-Static Cream Final Finish Micro-Finish Micro-Gloss Micro-Gloss # 5 TufBuf Polishing Pad
- Belt Finishing with Micro-Mesh (This Page)
MICRO-MESH® finishing belts provide desired surface qualities and economic benefits to many types of finishing operations, and are available in a range of standard as well as custom sizes.
Generally recommended for fine finishing steps, MICRO-MESH is constructed with a
thin layer of soft resilient material between the cloth back and the abrasive
crystals which provide the unique "cushioned" suspension action for the
abrasive. This unique design allows the abrasive crystals to recede into the
resilient layer and align at an even cutting plane. This eliminates deep random
scratching and results in uniform scratch patterns and significantly longer
product life than conventional abrasives.
MICRO-MESH cuts rapidly due to its larger crystals. This design allows more abrasive crystals to contact the work piece. MICRO-MESH outlasts conventional abrasives because the relatively large crystals do not load up, fracture or generate heat into the work piece.
MICRO-MESH belts work well with almost any of type floor or bench machines including centerless, flat belt and platen sanders. Since regulating speed and pressure is difficult with portable belt sanders, they are not recommended. It is generally more effective to take the part to the machine, rather than the machine to the part.
In general, surface belt speed should be set at less than 5500 surface feet per minute (SFPM). Harder materials typically are run at 3000 - 5000 sfpm while 2500 - 3000 sfpm is better for softer metals, such as brass. Even softer materials such as plastic, should run at 600 - 1000 sfpm and should always be worked wet. Too great a speed and/or pressure will ultimately defeat the cushioning system.
For best results, pressure should be kept light. The work of the MICRO-MESH belts is done with the abrasive crystal tips, very similar to the action of a brush. Increased pressure either by the operator or mechanically will cause stretching, premature wear of belts and unsatisfactory results.
The use of a very light water mist on the MICRO-MESH belt is recommended. This
mist should be applied at the opposite end of the belt from the contact wheel,
allowing the belt to feed the water forward to the part. The amount of mist used
should be adjustable. The belt should be wet to the touch where the part
contacts the belt, but not flooded. Generally if the proper amount of water is
used, no water should be dripping off the belt at any point.
Water is the best lubricant/coolant to use for all materials except aluminum. Where flash rusting is a problem, as with ferrous parts, an inorganic rust inhibitor such as sodium dichromate can be added to the water. Many organic rust inhibitors contain solvents that may cause crystal loss or delamination. It is always recommended to test any water additive's compatibility with a scrap piece of MICRO-MESH.
Belt "grease" compounds should never be used on MICRO-MESH. Grease fills the abrasive crystals and particles of material removed (swarf) will pack into the grease, loading the MICRO-MESH and rendering it totally useless. Such belt compounds are used to soften the cut of common abrasives and to lubricate. The use of grease compounds is not recommended with MICRO-MESH.
The finishing process used for a given part depends on such factors as beginning
surface condition of the part, finish desired, and the type of material being
finished. Surface evaluation is a matter of experience, trial and error.
If the surface of the part is too rough, a common abrasive belt may be necessary to bring the surface to a starting point MICRO-MESH can handle in a time-effective manner. However, since common abrasives usually leave random scratches deeper than the grit size of the belt, it is better to start with as fine a grit as possible for deburring or roughing steps. The random scratches can then be more easily removed with the initial MICRO-MESH step.